Sorry to hear that. I have not been following those matters, but it sounds like a certain whale took against her and maybe her reactions spurred him on. He is a bit of a troll and rising to the bait is the worst thing you can do.
Looking at this it seems she ignored advice from the good witnesses.
I think most people have a good experience of Hive and do not have to fear this mythical 'Hive slack'. The freedom we have here means that people can be dicks if they want to and some have enough power to do damage, but I don't think there is any big conspiracy, just people with multiple accounts they control.
Good luck in whatever you do.