I told him essentially he needed to calm down and avoid conflict (this user is always getting into fights) in addition to that it wasn't in my power as lead to ban people. He said I was being "very unprofessional" and threatened to go to the local newspaper about how we weren't taking his reports seriously - as if they'd care. I explained that I don't work for NextDoor, I'm just one of his neighbors with slightly more power than him.
He told me to "never contact him again" lol. OK. Good deal.
Anyway, I thought that struck kind of close to this.