That’s in insane amount of users and so glad they’ve picked an instance that will eventually refederate
Afaik kbin.social’s DDOS protection through cloudflare is messing with federation. I don’t believe it will be permanent but I don’t have a source on that.
I also wonder/hope if specialized Lemmy apps can paper over friction issues like these. For example i know that RedReader prefers viewing the cache of pages if recent