I guess I would say that if your main interest is a response from staff it might be best to DM them rather than make a forum post soliciting ideas.
It sounds like your main aim is to push for a wholesale policy change to forbid observations where humans are the focal organism, though, which I believe staff has rejected in the past. That’s quite different than your initial question which was about a very specific situation, so, I find this change in the thread a bit confusing. I’ll only add a few quick responses since it seems like you are primarily interested in a staff response.
Your fourth scenario above certainly falls under existing guidance about bullying/harassment - photos of targets of insults/mockery can be hidden.
In general, I also think that your proposed solution to forbid Human observations where the focal organism is a person would not
be successful in
It would seem to require curator review of all Human observations and a judgment call on each about whether or not they are focusing on a Human followed by hiding them. This would be a massive undertaking given that there are millions of observations of Humans on iNat.
Here are some other existing threads about similar topics/ideas/questions which also include some staff responses:
https://forum.inaturalist.org/t/acceptable-observations-for-humans/47144
https://forum.inaturalist.org/t/why-do-we-have-observations-of-human/13807
https://forum.inaturalist.org/t/human-obs-used-for-cyberbullying/42458
https://forum.inaturalist.org/t/observations-too-hastily-marked-as-inappropriate-how-do-you-deal-with-them/44046