This isn’t accurate, they were very active in brigandine other federations, hitting random threads on .world for instance with hundreds of reply comments drowning out anything that may be a tiny bit critical of china or Russia. Or pro west.

Have you considered that their users were just browsing the front page and what you’re describing is just the nature of lemmy and how federation works?

There wereultiple cross-posts daily pointing to specific threads posted on hexbear to organize brigading.

You’re likely referring to the_dunk_tank which is a community that encourages bullying homophobia, transphobia, fascists and liberale (pretty based imo)