It's a lot like guild formation/behavior in World of Warcraft actually!
Alright, so then Philip agrees with deleting comments so that one can tailor a discussion after the fact, making it resemble more of what one would personally hope for. That, and putting words in people's mouths, is what Philip calls "open." Stand by it.
Some great books I've been reading related to what makes anthropology "closed" are:
Thomas Hylland Eriksen, Engaging Anthropology. http://books.google.ca/books?id=D1bz9Oui1HMC&dq=eriksen+engagin...
Caroline B. Brettell, When They Read What We Write.
Also Wallerstein et al. "Open the Social Sciences"