It’s not an easy job being a moderator, no matter how egregious the behavior is, it’s always a difficult decision.
I think though this user has pretty convincingly revealed their underlying motivations, by way of their various posts and their behavior therein.
I was checking the “strength” post in a weird voyeuristic way, just to see the downvotes and look at the squabbling.
Each time I came back, I noticed that they had completely revised the entire post content, along with many of their comments.
The entire thing reeked of bait, trolling, mean-spirited sarcasm… All blended with what seemed to be, at least to me, a very bizarre fixation and fetish-like fascination about a specific topic.
For all the extremely valid criticism Reddit gets, at the very least one of the things they did rock-solid was giving moderators tools to deal with users who were acting in bad faith or outright abusively. For example, they made it extremely easy to automatically filter posts from untrusted new users until they had passed a certain threshold, or other ways to limit their exposure until they had established themselves as part of the community.
I’m not sure how robust, or even what set of tools you have available on this platform.
Whatever you can do to help us participants of this community, I know that I would personally thank you and appreciate it. Sometimes the answer is to ignore these people though, not necessarily bans, because in a way that gives these social deviants what they’re after in the first place.