I think their instance admin was the guy behind the tesseract scandal a few months ago, might want to look into that if you haven't heard of it.

Basically snuck a hidden blob into a "small" update that shadowbans a bunch of users and keywords. Doesn't sound that bad on the surface, but the implementation was really shady, the blacklist itself was sloppily constructed, and the way he handled the fallout when people called him out on it was really immature.

If I have this confused with a different instance, then my bad. I think he's involved with sh.itjustworks at a fairly high level too though.

There's a couple graphics floating around somewhere mapping defederations of major instances if you want alternatives. I'll see if I can dig them up.