So, preceding to not follow into the same trap as the remainder commenters here have made of addressing the content and not the mod action…

You ban someone for making a comment (because you disagree with them) just to have the discussion continue in another board/community (this thread).

Whats was the point in banning them then?

Just let their comment remain and get down-voted to the floor of the thread - that’s the point of voting on a comment. Now the discussion has been pulled out of the community that had informed subscribers, and into one that has broadly zero overlap with c/palestine.

BPR - Bait-Provoked Reaction: That mod probably overreacted in charged situation, or due to being baited.