No one likes effeminate gays. That's why most of gaygaf is single.
I think the majority of us gay people give it away somehow even if we don't say it. That what gives it away is what straight people (our parents, family, neighbors, etc..) call "effeminate". In that sense, most of us are somewhat effeminate, be it the move of your head, a tone while talking, the way you walk, the way you expose your muscles, etc...it's basically always there in some form.
and we all have sex with each other so I don't know the point of the question ^_^ (whether or not it's fun to have sex with effeminate guys, from some posts ago)