Poster Warned then Suspended for debating in Great Debates

This is a transparent pretext to get rid of someone you don’t like. The same “violation” occurs all over this board, but people don’t get in trouble for it if they are not disliked. Here’s a moderator going wildly off-topic:

I await your tortured explanation as to how this is on topic to debate the issue of whether we have or have not betrayed the Kurds. (Spoiler: we have.)
A couple more examples I found with just a quick perusal of GD:

(Topic: emoluments)

(Topic: whether Obamacare can or cannot be termed a failure 9 years later)