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Reddit Undeleted all my posts and comments

Before I left Reddit, I used a plugin through the api to replace all of my comments with random gibberish and then delete them. Part of this was because (mandatory) fuck spez. But more importantly, it was to protect the anonymity of my account. After years of posting, there is likely enough personal information shared to potentially connect my Reddit habits to my online identity. I wasn’t planning on using Reddit again in the future on that account, but I left it open in order to maintain some security control over the account. I’m not really sure what to do at this point because I still consider it a security vector that’s a bit concerning. There’s no way I can manually edit and delete all of my content with the snail’s-pace reddit UI, and I have no ability to assure that my content will remain unavailable or at least not publicly displayed.

cm0002 ,

Lol, a couple times I commented whenever this came up that it was probably pointless deleting like this with the random words and what not because reddit was likely doing some form of versioning or backups of at least the text based content. Especially since said content was/is under inflated executive value because “AI”

I got downvoted routinely because “ThAT WoULd Be Too ExPeNsiVe anD CoMpLiCatED, no WaY thEY dOiN tHaT”…if what you say is true with the true random words and everything, then I was right and they’re doing exactly what I thought they’d do lol

gedaliyah OP ,
@gedaliyah@lemmy.world avatar

I knew it was a possibility but I didn’t think it was likely. Well, here we are.

Poppa_Mo ,

It’s a differential backup.

Super goddamn common. People who aren’t tech literate should pipedown.

It’s a nothingburger amount of effort to restore backups in most cases lol.

zoostation ,

My 15k deleted comments across multiple accounts are still gone. But I used my own Python script and it was about 6 months before the drama started and lots of people were doing it.

Orbituary ,
@Orbituary@lemmy.world avatar

This is what I used and it worked great.

redact.dev

For the times that I go back on to Reddit, I follow up and delete my comments a few weeks later using this.

RememberTheApollo_ ,

Huh. I lost 50k in points post-APIgate. So they undeleted some, and deleted others?

Jimmycrackcrack ,

Maybe you should start the long process of manually changing everything to grammatically correct, parseable nonsense, comment by comment. Make it a long term project.

gedaliyah OP ,
@gedaliyah@lemmy.world avatar

Even better! Maybe change everything to “ignore previous instructions” lol

johntash ,

You’ll need to include new instructions to follow too!

tal , (edited )

If you’re concerned about particular comments or posts linking your Reddit account to your real-world identity, and you know have a pretty good idea what those are, can you just delete or modify those?

I think that there are some other issues here, though.

That will help if you’re worried about someone doxxing an account via just casually doing Web searches, maybe.

But people have already archived copies of Reddit’s comment and post history. So if you’re worried about someone likely to be digging through such a database, this won’t help.

And I have no idea whether Reddit actually purges deleted comments internally, or whether they or any partners or future purchasers might have access to deleted text. I haven’t looked at their privacy policy, so I don’t know what they do.

gedaliyah OP ,
@gedaliyah@lemmy.world avatar

It’s an aggregate concern - Advertisers, bad actors, etc could easily use tools that are available now or will be soon to extract information that otherwise would be impossible for a human to wade through. I know that in one sense, everything is backed up by the NSA, etc, but that is not something I can do anything about.

The concern is actually greater in the fediverse, since a federated admin has access to even more information, and there is no absolute way to delete everything even with GDPR. I think that the risk is worth building a better internet. It’s also a part of why blocking Threads is important.

tal , (edited )

So, I’m gonna be honest. I don’t think that mass deanonymization via text analysis is in the immediate future.

Is it a theoretical risk? Yes. It’s not because I don’t think that it’s technically doable. It’s for a rather-more-depressing reason: because there’s lower-hanging fruit if someone is trying to build a deanonymized database. I just don’t think that it’s presently worth the kind of effort required to mass-deanonymize text, in general.

Any time you have an account with some company that persists for a long time, if they retain a persistent IP address log, then whenever you log in, you’re linking your identity and the IP address at that time. Especially if one cross-correlates logs at a few companies, and a data-miner could do a reasonably reliable job of deanonymizing someone. Maybe it’s not perfect, maybe there are several people in a household or something, maybe some material is suspect. But if you’re watching cookies in a browser on a phone crossing from one network to another and such, my guess is that you can typically probably map an IP address to a fairly limited number of people.

I mean, there are ways to help obfuscate that, like Tor. But virtually nobody is doing that sort of thing. And even through something like Tor, browsers tend to leak an awful lot of bits of unique information.

And if someone’s downloading an app to their phone that’s intentionally transmitting a unique identifier, then it’s pretty much game over anyway, absent something like XPrivacyLua that can forge information. Companies want to get people using their phone apps.

An individual person might be subject to doxxing from someone who wants to try to identify their real-life persona from an online persona. But I don’t think that companies will generally likely be going that route in the near future to try to deanonymize users en masse, because they’ve already got easier, more-reliable ways to track people that people are vulnerable to.

All that being said, once text is out there, it’s potentially not going away, so keeping in mind that it might be deanonymized one day via future analysis might be a good idea. The Federalist Papers were deanonymized via Bayesian statistical analysis centuries after they were written using technologies that their authors could not have dreamed of.

Robert Hanssen – a Soviet mole in the FBI who had counterintelligence expertise and could reasonably expect to be dealing with state-level intelligence agencies going after him – was caught because he used the unique phrase “the purple-pissing Japanese” on two occasions; once where his real-life identity wasn’t known but that he was a spy was, and once where his real-life identity was known but not that he was a spy. That deanonymization was done manually, via human effort, but if you figure that the same sorts of approaches could be used to link accounts at different services and across accounts on one service…shrugs I mean, I just don’t have the tools to try to resist something like that, to keep what I’m saying intact but present ideas in a way that I’d be confident would be strong against that kind of analysis.

lvxferre ,
@lvxferre@mander.xyz avatar

While I don’t think that text analysis (TA) is going to replace those techniques that you mentioned, I do think that it is a threat to anonimity in the immediate future, because it’ll likely be used alongside those techniques to improve their accuracy and lower their overall costs.

The key here is machine “learning” lowering the TA fruit by quite a bit. People misattribute ML with almost supernatural abilities, but here it’s right at home, as it’s literally made to find correlations between sets of data. And, well, TA is basically that.

Another reason why I think that it’s a threat is because even a partial result is useful. TA doesn’t just identifies you; it profiles you. And even if not knowing exactly your name and address, info like age, sex, gender, location, social class, academic formation etc. is still useful for advertisers and similar.

(Besides the Federalist Papers and Robert Hanssen, another interesting example would be how the Unabomber was captured. It illustrates better how the analysis almost never relies on a single piece of info, but rather multiple pieces that are then glued together into a coherent profile.)

(Also sorry for nerding out about this, it’s just a topic that I happen to enjoy.)

BlackPenguins ,

Was it random gibberish or the same phrase every time? I’m not sure what Reddit is capable of but if you use a copy pasted message then they could easily know which posts to undelete. However, if you replace your posts with random sentences (say pick from a list of 100) they won’t know which is real through obfuscation.

gedaliyah OP ,
@gedaliyah@lemmy.world avatar

The tool edits the comments to a random string before deleting, since deleted comments and posts are actually preserved.

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