That third one you linked to was pretty clearly an insult being directed at the Original Poster of that thread:
If **BG **hadn’t added the second sentence about “subsequent posts”, I’d say you might have an argument, but he’s clearly talking about the person that made the original post - and the posts they made after that.
Also, as tomndebb pointed out in the post right after JC’s:
So either interpretation was a warnable offense - either for insults or for threadshitting.