This is a special interest site. Anyone that thinks it's OK to go to that special interest site to tell them they're all idiots and the things they like are stupid are the trolls.
Yours is a nice idea, in theory, I'm pretty sure it would not work in reality. I think it was like that before iOS and we weren't constantly inundated by increasingly hostile Android fans. It's been increasingly difficult to give people the benefit of the doubt, and a few people without hostile intent do use the troll talking points without realizing it. We really can't give people free reign to interlopers who are here to cause trouble.
It would be sufficient to simply see Rule #1 applied less selectively.
There ya' go.
It's your forum, so if you feel it benefits your advertising revenue to encourage a lynch mob mentality, don't let fairness or civility stop you. But if you want AI to be seen as anything more than the Bill O'Reilly of the Mac world, consider just applying the few rules you already have more evenly.