I think it's healthy for the fediverse to have similar communities on different instances, because if we centralize, it basically becomes reddit, which means moderation and censorship are at the whims of whoever owns the only place people go.
I'd also like to give a shout-out to sopuli.xyz/c/memes for having a popular memes community too.
Is any other app out there able to handle streaming games to your friends as easily as discord?
It seems like we should probably be looking for the next ship to jump to...