I stumbled on 3FC by accident and loved the format. I read it daily and post when I think I have something useful to say.
It has been very helpful during my 40-lb weight loss, especially the kind-but-firm advice and the motivational sayings that I copied out and put on my mirror.
I find it interesting that people use such a variety of weight loss approaches yet are very supportive to others who are doing things differently. Either people here are unusually kind and gracious or the moderators are doing a superb job keeping the posts helpful and free of unnecessary criticism. Maybe a combination of both. Anyway, you learn a lot here and feel part of a great community.
I come online here because I don't discuss weight loss with friends and family. I don't want to bore them, and besides, I enjoy reading what hundreds of people are writing.