how about if someone’s behavior is likely to recur and cause great aggregate damage (either impact on a great many people, or severe impact to a few people)

someone cheating on their partner is, at worst, going to affect a handful of other people who also date that person.  and spreading it around the internet at large is not an effective way to reach those potential future suitors.  merely cheating doesn’t necessarily indicate a likelihood of doing it to someone else later either; maybe they think the relationship is terrible but they haven’t worked up the courage to end it yet.  that’s not great, but it doesn’t make someone A Serial Cheater either.  so making some huge-ass post about it is basically spite.

and who the fuck writes callout posts about kinks, why would you do that