The people least equipped to comment about moderation seem to have taken over this thread so I'm closing it. We don't allow discussion of our moderation approach in public posts. If you have any questions about it, feel free to ask. However, we will not answer any questions about sanctions against other members.
There is a pretty clear line about harassing people here, and most of the self-appointed intelligence moderation patrol fall afoul of it pretty often, thus the sanctions. Intelligence is a spectrum and it's quite difficult to do anything about a lack of it. We certainly have banned people for what you might call a lack of intelligent posts that caused too many problems. But usually they are harassed into active trolling before they go. Not really fair, but there is only so much disruption we can take. However, some people apparently need to reflect on where they fall vis-à-vis the Dunning-Kruger effect.
The moderation team discusses problematic posts before taking action. We don't want to over-moderate, but winter and isolation due to the pandemic have driven a lot of people crazy. Personally, I would rather not have to do any moderating other than banning spammers, which is kinda fun.