Chairman, I hear you! One think I think I have picked up in here is that most posters are pretty reasonable people. As in any walk of life there are some who are not. There are also 'degrees' of feminism - I liken it to the Labour party. There are those with less and those with more extreme views. You will see some posters stating that their brand of feminism is more feminist that someone else's feminism. Other feminists believe that if men like your brand of feminism then 'you are doing something wrong'! I will leave it at that. That idea of posting as a woman has briefly occurred to me, but I decided against it. It wouldn't prove anything that I didn't already know. As I said though, the majority of posters are good people - it's a bit like real life! I try to treat everyone with the same level of respect. That is all you can do.
Eats, I agree that having to start from point one in too many discussions can take too much time. If it comes as a genuine enquiry, it's fine to point someone in the direction of some kind of 'beginner's guide'. If it comes complete with arrogance and half-baked theories, well put your tin hat on 
On a personal level, I was never going to send my daughter or my son to a mixed school. My daughter has a female head, deputy head and head of year. She has plenty of role models there, and an environment where there are less distractions. Teenage boys are, by and large idiots. I know, I was one.