Sorry if this formatting looks weird, I’m in mobile.

Someone joined and I was about to let them in (we have a vetting process) and 4 people, the co-owner and 3 other people DMed me saying that that person was bad. Apparently he had picked fights and caused a lot of drama. I don’t want that on my discord server, for obvious reasons. I ask other people about him and that said something along the lines of that he liked to pick fights and would encourage others to get involved (keep in mind their experiences were a few years ago) and they also said that they were very uncomfortable with him there. The discord server in question has like, 20ish people in it and there was only 4 that were uncomfortable with him. So me and the co-owner decided to ban him. There’s been a lot of backlash from other servers for banning him. I do want to give people a chance but at the same time, he was making people uncomfortable and I don’t want that to be the environment in my discord server. He might have changed from a few years ago, but he also makes people uncomfortable. So AITA for banning him.
Side note: the discord server I run is for people with PTSD and other related disorders mainly to get support and tips and stuff. So, him being there as not only uncomfortable, but triggering to them as well.