Generally with these kinds of feelings, how would we see things if the roles were reversed? If lemmy.world had communities saying absolutely vile things about Canada or whatever. Or things that would be maybe illegal in Canada.
Would you want lemmy.ca users to be subject to that, because it’s on another instance? Or would you rather try to cultivate a positive experience for everyone?
Now obviously these aren’t super comparable, I can’t quite come up with a 1:1 example. But part of choosing an instance is to align with your values and the content you want to see. There’s ultra conservative instances censoring what they see as “liberal crap”, and there’s ultra liberal instances that also censor what they see as “conservative extremism”. I’m sure there are or will be religious instances that censor everything that doesn’t strictly align with the gospel.
The problem with rules is even some of the rules we think as pretty obvious universal like respecting eachother falls apart when the group of people enforcing the rules decides the other group is [insert *phobia] and they don’t deserve respect because they’re [insert unfounded accusations].
Now we’re still mostly dealing with fairly free countries. But then you’ll also have instances from other more authoritative countries that will also gladly censor a good chunk of lemmy.ca, if not defederate entirely. It just happens that we tend to try to see lemmy.world as relatively neutral instance.
For me that’s a feature of the fediverse: it can all mostly coexist and as users and admins we get to choose which particular view on the data we want. If an instance wants to aggressively moderate conflict, good for them. I run my own instance specifically so that I’m not affected by all that crap, and why smaller instances should be encouraged.
It should be well known and agreed to that if you want the full view of a community, the best way is to get it from the original instance. Don’t want lemmy.world to skew your view of lemmy.ca? Make a lemmy.ca account.
IMO it would be entirely reasonable for an instance to for example aggressively censor transphobia. You bet there will be a matching instance that censors all LGBTQ+ topics as disturbing deviant conduct dangerous to people.