Unless this happened in the last couple of days they’re not. There was a big discussion recently on one of the federations, and the admin who was from Latvia I believe stated that he was never against the CCCP. That thread was brigaded by hundreds of hex bear posters exclaiming how wonderful and helpful hexbear users were in explaining communism.
Edit - looks like I was wrong and some of the major federations of defederated with HB. Interesting.