This is actually a technique devised by Russian state internet trolls https://stratcomcoe.org/cuploads/pfiles/full_report_trolling_25012016.pdf they use it against users more specifically though, attempting to draw them out to say something that would might trigger auto-mod/auto-bans regardless of context. Like a comment thread agent provocateur.
There are just as many Nazis/nationalists doing this shit as commies. Which is to say… a small minority of users but coordinated and with many active accounts being managed across every type of sub.
One common type post in one “normie” sub like a game sub, nfl, sports, etc, to pepper their history’s it’s organic looking activity, and then in default subs with lots of “as a _____ person” troll comments. “As a black lesbian Republican” etc…
No shit