Wow, didn't know the people making Lemmy were that bad and deny genocides. But I also don't have time to read and understand all the old posts, and I have no idea who the people are who are talking abotu this, so it is incredibly hard to say if it is trustworthy or not. Would be interesting to get a statement from the lemmy developers today about this, to see what they think about the uighur thing and north korea today.
Where's the actual questionable content? All I could find was a Mastodon thread claiming the devs have shitty opinions without any links to any actual people raising these opinions. The best I can do is guess they are referring to lemmygrad, which indeed looks like a brain dead shit hole of insanity, but how does that relate to the developers again? A bit more clear-cut presentation would be greatly beneficial, as this level of discussion is FUD as best.