Its just an instance where tankies can exist in an echo chamber without having to critically think.
If you want you can read some of my comments here and watch these morons make fallacious argument after falacious argument, put words in my mouth, and project some person who makes similarly bad takes which exists inside their head onto me: https://lemmy.today/comment/17304484
Edit: there’s also this thread: https://lemmy.today/post/32415724/17304693
Yeah cause .ml and .hexbear are toootally not propaganda echo chambers.
They aren’t, no.
They are less echo-chambery than Lemmy.world, in my opinion, as Lemmy.world largely aligns with the status quo and as such cutting out communists means you aren’t exposed to communist perspectives at all, while on Hexbear, which is less broadly federated than Lemmy.ml, you still can’t avoid engaging with liberalism when off of Hexbear.
In other words, Hexbear is a place carved out for communists by communists, but Hexbear users can’t actually avoid interacting with liberals. Lemmy.world, on the other hand, aligns with the status quo, and cuts out viewpoints that go against that, meaning they can avoid engaging with communists to a far greater degree.