I agree with pellius here,
I can understand if someone doesn't feel comfortable of posting pictures if they don't feel good about it, you know what helps? Admiting it, and by admiting it I think you get courage to then post pictures.
I think that posting in any boards of any kind it's only good to give pictures... in bodybuilding board you give body pics etc.
And talk about insecuritys, there's 2 bad's. One insecurity is that you know you look like nothing and are afraid people might laugh you off. The second insecurity is that you want other peoples acceptance by showing how bad ass you are and muscular becausse that's all you are.
But, if you could get rid of the two negatives of both insecuritys, you can post pictures without any bad agendas, post picture of yourself, this is who I am, you know, there's only one you so embrace yourself, people can improve physicly and mentally and whatever.
(no homo)