Retrospring in it's main years and up to now doesn't really have a ban threshold. We thoroughly evaluate(d) context.

Death threats and straight insults are not up anyone's alley and are just forbidden. Delayed actions from our side at some point just came from the fact that people are really persisting and we had sometimes up to months worth of banning new accounts because they wouldn't give up. Telling people affected to ignore these people worked better.

Comes from blocking also not being a thing. But even if you blocked them, and you were on their hitlist, they'd just make some new accounts. They wouldn't stop until you gave them the silent treatment.

Aside of anything obvious, when the team noticed an obvious tone of a non-offensive joke that was reported to us, we generally denied the report. Our internal reporting system worked with votes, so it was obvious for people with enough power to ban people, when a report received a majority vote, basically.

Nowadays it's not of much use because we don't have any moderators anymore. And in the last 3 years we only had 2 cases of people having broken their funny bones.