I've never heard of this happening before, and as to your question here....there's no way in hell the mods are going to be focusing on 'air-hanging posts'. At least I hope not, because those are trivial compared to the constant avalanches of diarrhea in the form of posts, AI-generated or not, and all the other stuff that shady members pull on an hourly basis.
Yes, they will not be focusing on 'a-h-p' for the majority of the threads, but I believe Meta and Reputation's hot threads will be preferred.
People are less likely to get attention on themselves on these boards for "spamming/offtopic/spreading-bs" because they're watched very closely compared to other boards.
I had a look at the archived posts you have provided, and it shows that the guy was abusive and was even threatening you to provide your location, etc. The moderator was right that your posts had no meaning anymore since the posts were responses to the person alone, and his posts had already been removed. [2] Just like others have said, I have never faced such a situation before nor have I seen anyone mentioning it like you did.
The person cannot even ask for ID documents from his main account. Do you expect him to visit me himself? These are shallow people with empty threats.
[2] - Yup, that's why the moderator asked; he didn't want to delete the post that wasn't reported. I could've refused if I wanted "giving into ego," but it would've been a bad example of exploiting the place you use. (I am sure some people would've loved me taking that route and setting an example).