AndreTelevise

Libreddit does work, but not all instances of it do.

beehaw - tight-knit diverse, lgbtq and positivity reddit

Out of the open platforms, I use:
Reddit: Lemmy, Beehaw, Kbin
Twitter: Mastodon, Calckey
Facebook: idk nothing really plus I don’t even use Facebook that much anymore

I may occasionally use proprietary ones like Twitter, Tumblr and Threads.

They did make a poll and then later announced they’ll be banning underage anime art and IRL imagery . But not art of cute/short characters because it’s impossible to discern if they’re over 18 or not. It’s the whole Pokemon debate all over again.

So, it is recommended to either join one that fits your niche or maybe to self-host?

According to fedidb.org, the entirety of the Lemmy network (that uses the Lemmy software) has 140,442, while the entirety of the KBin network (that uses the KBin software) has 32,830.

I can’t see new posts from kbin on l.world anymore so idk what’s happenning

Old posts and comments will be seen, new ones won’t be seen. One-sided defederation is like two linked servers delinking from one another - you keep the old info but you basically desync and one side can’t see the other if they add new stuff.
That’s why I have accounts on both kbin and l.world - so that I am able to access more information as it gets updated. It seems the influx of new users is leading to a fracturing and a defederation of the biggest instances, so having one account for all of the threadiverse is not viable.