I think many influencers are their own worst enemy due to their own fragility. It makes me wonder if they have ever worked in a corporate job where getting feedback is the norm? Did they throw up their hands and shout "troll" when they were offered constructive criticism by their boss?
Of course, there are some mean threads on here. I don't partake in them and if a mean comment does arise on a thread I comment on, I ignore it.
Chatting about others is not illegal, no matter how much some people wish it was. If it was, the likes of reddit, the daily mail comment section etc would not be allowed to exist. Influencers choose to be public figures and with that comes discussion.