People there are so greedy, so eager to lick rich people’s balls, and so likely to throw insults and downvotes at you, if you give any hint that you support communism. It’s honestly such a disgusting place, full of slavers pretending to be smart, kind and moral.
It probably depends a lot on what subs you visit.
In most subs I use I can now talk well of Korea and China or in favor of Russia and Iran and people will agree, specially if I call out double standards and things like that.