I attended an out of school LGBT youth project from the ages of 13-18, I also went to monthly meetings a two hour train ride away.
I found the weekly LGBT youth project was good at getting me around people, and put me in touch with a lot of adult youth workers whose company and advice I enjoyed. The people attending however were mostly heterosexual, and were neutral on the topic of homosexuality, and negative and hurtful on the topic of transgenderism.
An exemplar quote would be 'I don't have a problem with people changing their name, but I think people should keep it to themselves if they're unhappy with their gender' (I prettied that quote up some).
Most of the attendents were rude, disrespectful and generally harmful to the situation. The one that I travelled to attend monthly was excellent, and although I never worked up the nerve to tell them I was trans (as far as most of them were concerned I was a homosexual female) I'm certain that I would have been treated with respect. I'm looking forward to going back to that group soon actually, as I am moving to the area where it meets.
But, having said that, I went to a creative writing club and there were just as many people there being assholey about writing. So, I don't know, maybe people are just pricks.