This another disturbing trend for “pro-ana” (pro-anorexia) groups:
http://www.salon.com/mwt/broadsheet/feature/2008/11/26/proana_facebook/index.html
As stated in the article, there are both pros and cons to this. While the groups may further encourage the eating disorder, the public aspect of the groups may facilitate more discussion and assistance for those who join them.
I could also see this as going another way, knowing that people might use this information to degrade the girls/people who join these groups.
What are your thoughts on this?