One further point is that one doesn't even need to intend to be famous to become famous. As a classic example, you might want to read into the story of such accidental stars as Ken Bone, Laina Morris, and many others. As Andy also points out, anybody being famous seems to give people the mentality that they are "fair game". Maybe pop stars just want to make music and not be harassed either in the street or openly. Maybe Ken Bone just wanted to ask a question at a political debate without having his private life delved into and relatively minor demons exposed for all to see. Maybe Laina Morris just wanted to post a humorous video without becoming an internet sensation and without being drawn into a world she wasn't prepared to handle that exacerbated mental health issues. In the UK, maybe Gail Trimble just wanted to answer questions well on a quiz show without being subject to sexist abuse, without being invited (via her brother!) to do a Nuts photoshoot, and without being insulted over all the major papers.
All of these are presumably separated, in APG's view, by virtue of abandoning even for a second their anonymity. But they still expose the nasty world of trolls, and it simply beggars belief that we should tolerate that at the same time as criticising those who don't want to put up with it. Of course, the other irony is that the cloak of anonymity also seems to act, for some, as a useful protection to be so vile in the first place.
I can sympathise to an extent with, say, fears about cancel culture, about being afraid of our own shadows and so on. But there's a very clear position between the two extremes of "anything goes" and "nobody can say anything", where people are merely being asked to give more thought to what they say, why they say it... and to show more empathy.