This sub is one of the only few anar subs, and it’s surrounded by hostile people who hate us. that’s not a nice feeling to have on a leftist instance.
And there is a lot of room in rule n°4 to still disagree and have discussions, no straight banning if you don’t just wanna start a fight.
rule n° 4 is just basics of online moderation to have a safe space. And it was discussed here.