I guess it needs to be said out loud, so as usual, I’m going to say the thing.
It is NOT hard to run/maintain a well moderated* social media site, whatever the format might be. I’ve ran discords, sites, and major message boards with no issue.
Anyone saying “moderation is hard” is being emotionally lazy, and in all honesty, you just don’t want to do the uncomfortable work of telling friends to stop being racist. You’re also refusing accountability for what happens in spaces you create and own.