While the discussion arguably veered off-topic with respect to the original article, I don't think we actually have a rule against that. And I don't think eridu was actually trolling, though they do seem to have an overly-dismissive attitude towards the community. I do think there's a place for social constructivist / radical feminist views to be aired where they apply on this site, and I don't think eridu was doing a particularly bad job of it.

If we have a diversity of views, then people will disagree about fundamental sorts of things and we'll end up with people thinking each other are "not even wrong" about some issues, which certainly seems downvote-worthy at the time. But we do want a diversity of views (it's one of the primary benefits of having multiple people interacting in the first place), and so banning comments which are merely unpopular is not called-for, and will simply shunt out potential members of the community.

Of course, I'm basically guessing about your rationale in banning these comments, so if you'd like to provide some specific justification, that would be helpful.