It isn't name calling. I could think of far worse names to call you but I don't call people names in online forums, I try to be civil. Troll has a wikipedia definition that fits what you are doing perfectly and several people have pointed this out. Seems you also have plenty of experience of being called a troll as well, so presumably you have wound up other online communities. This forum has been going for ~5 years and has thousands of users. I can't remember anybody else causing multiple complaints like you have.
... to stop this I've restored all rendered posts of gerard1111 to the last valid state and banned him, so he can't contribute (or troll) anymore
It's no fun to arm the big guns as admin, but sometimes there is a situation not solvable by dispute or others.
As reaction, and to prevent such overreactions in the future, I've changed the forum settings - now a user can edit his posts only for 48 hours ... after this time he has to ask a mod/admin to change it ...