Missed my point.
You're not helping your case as it makes it sound more like hyper fandom stalking. Post an address, go for it if the public at large can access that information; I think that is the definition of public. From what I understand, this propagandist had to have access to information that isn't public knowledge and it led to someone actually taking action as if they were a supposed "Kiwifarmer". The problem is, I can't verify this information the propagandist put forth because I don't have access to the information behind the private identifier.
To address your point on car license plates, a street is public. Essentially, the scenario as presented by you is not applicable to this situation. Hell, I support LibsofTikTok, however the "dox" of their address, I shrug. It sucks, however, when you are taking an opposing stance as openly as they are, expect and prepare for the worst; ANTIFA is speed running to surpass the KKK in violence. Basically you're describing a legal investigations app that has streamlined a process that I had to use at work as well. (Former, I don't glow that much anymore)
TLDR: There is a difference between DOT a publicly available app and Lexis Nexis (A database of information, public and not public that debtors and investigative teams use to profile people's history, acquaintances and their entire family tree as well as give there SSNs and other information that could be used for identity theft, surpassing question based verifications, etc. Basically you need a valid reason to gain access to the private juice.)
I can't speak for others, I personally don't think Flight Tracker is used for those actions or even calling into question this point. The issue is the privacy factor of all this. Celebrity or not, they deserve the same amount of privacy as I do. If I denied this fact, I'd be no different than the people we are laughing at.