I am both a skeptic and, in another decade, fancied myself a debunker. These days, I have a different perception of this stuff.
That's not to say that I think a lot of what is classified as paranormal is true -- I don't. I've seen enough to feel that I know it isn't. I'm using the word "feel" to avoid offending people. I point that out to illustrate why I think it's a waste of time to do things like what Chris is describing.
I wouldn't come to these forums, where enthusiasts come to congregate, and start threads attacking the beliefs inherent to/in the field of the paranormal any more than I'd go to a religious forum and start attacking that stuff. Other than hurting people's feelings or just thinking it's funny to piss people off, what's the point? Why does anyone need to be "enlightened?" Why give a shit?
I treat it and view it in the same way I treat and view religious belief.
I may comment on certain threads with a skeptical bent, if certain aspects of science are being discussed, as with the Bigfoot DNA thread, but that's generally just to join the ongoing discussion. I also don't like when people get their hopes up over something that, to me, clearly looks bogus. I think excitement over those types of things also hurt the credibility of paranormal research; in that case, consider me devil's advocate.
To the contrary of Chris's idea of the unsolicited dickery that should be mainstream skepticism, I have actually started several threads to rekindle interest in certain aspects of the paranormal; whether that be just to get everyone's take or to learn about some corner of the field that I had never previously experienced, it's all generally positive when properly managed.
People aren't doing that, Chris, because people know how to act and aren't generally inherently mean. When a discussion already exists, there isn't anything wrong with introducing a new take, be it counterpoint or otherwise, to that discussion and seeing where it goes. Starting a thread, for the express purpose of attacking the ideas and likely beliefs of a recognized community, would be unhelpful, tactless, mean and, in the least, socially awkward.