You must be using the All Trans Anime Porn All the Time app.

I just use Firefox for Android and sort by New by default and I don’t recall seeing any trans anime porn. Ever.

Those aren’t actually lemmy.world communities.

Everything on that list is a community on that instance (whatever it is - lemm.ee I guess).

For example, a post from a lemm.ee account to AskLemmyWorld@lemmy.world is actually a post to an entirely separate community - AskLemmyWorld@lemmy.world@lemm.ee That lemm.ee community is a mirror of the lemmy.world community (and of all the other communities on all the other instances that mirror it.

That’s how federation actually works. You never actually leave your home instance, and what seems like a post to a community on another instance is actually a post to a locally hosted mirror of that community.