99.99% of content on reddit is stolen. What do you think something like /r/WhitePeopleTwitter is about if not content theft from another large platform, with first come, karma served. No one, not a single person there, is ever even concerned with wether or not permission was requested and granted. Heck, not even guides are safe from this. Go visit /r/piracy, and check their wiki. Think of how cool, useful and well formatted it is. Appreciate it for a bit, right before being informed that even this was initially copied nearly verbatim from another online resource. One that, ironically, is banned from being posted on Reddit.
It’s a link aggregator, that’s the category of website it falls under.
And so is this one.
Steal and credit. Link the original directly if you feel too bad. Reword after research, but do it manually if it concerns you. You will be doing more than due diligence. Because if no one ever stole, we’d basically have no content.