That is not why it is dying. It is dying because that management doesn't care if there is a message board here or not. They might care a *little* about the hair boards. But they definitely could give a rip if the non-hair side took a flying leap. I think if they could make the whole section go *poof* with no repercussions, they would do it in a heartbeat.
Like I said, the vast majority of boards behave the same way toward potential trolls. And that vast majority of web boards that are hostile to trolls are still going strong. It's not a problem, in fact it prevents boards from being overrun by a lot of unpleasant folks.
And NetG is right -- new posters identified as such usually ARE trolls.