I was confused as well, so I poked around a few other articles - it seems to happen pretty frequently on this site.

Most of them do seem to be vaguely related to the articles so my best guess is that it's a combination of individuals trolling + lax/nonexistent moderation. The handful of articles I checked seemed to be above the board unless I missed some dogwhistles somewhere, so not sure why exactly the site seems to be a target for this specific sort of trolling.

Keywords matched whatever triggers sockpuppets?