I don't think a subforum is the answer. These things tend to go in cycles - lots of activity in the past month or two, but doesn't mean it will continue. Lipomas makes a good point about merging threads - not really a great option because it basically just discards threads (which might make some people happy but piss off a lot of others). I can start merging threads if people keep creating new threads on something that has been discussed recently though, will try to stay on top of it. If someone who is really passionate about the issue wants to create a link to all the "best" threads that talk about the job market, I can add it too the sticky.
In terms of discouraging applicants, I agree (and have tried to post as such) that many of these threads are incredibly counterproductive and the anger is being directed completely in the wrong directions. But it is next to impossible to convince people who will not listen to arguments, or who spin these arguments into something that they are not. I would hope that people who are serious about pathology would not make such serious decisions about their life based primarily on the rantings of selected anonymous individuals on the internet, but people make decisions for all kinds of reasons. It is always important to get perspective from many sources - especially from people that you trust. I can honestly say I do not know very many pathologists who regret their career choice, whereas I do know an awful lot of other clinicians who do. Those pathologists who do regret it tend to regret more the medical career decision than the specific specialty.
Many people who discard pathology as a career choice may not have been so serious about it in the first place, and it is good they get out before they get years into it and find out they made a mistake. I had a couple of residents in my program who came into pathology for the wrong reasons - it showed very early on in their work ethic and motivation. Neither one ended up finishing their training before transferring to a different specialty, and it had nothing to do with the job market.