I suspect that one of the reasons Balboajo asked this question is that on this board, unlike in life, you know someone's gay from his profile. And also unlike in life, the subtle visual cues of checking each other out to assess interest are not really available on the net.
Believe me, straight guys, you've had more encounters with gay men IRL than you think. It's just that IRL, it's possible for your gay brothers to be discreet and feel you out, so to speak.
I'm prompted to reply to this thread because I'm writing this in Bangkok airport, where the men's rooms seem like innocent places to pee for most straight men. But to a trained gay eye reveals Cruise Central. If I weren't gay, I'm sure I would never have picked up the vibe.
I think you'll just have to learn to live with it, guys. Surely you've learned to say no to girls you don't want to fuck*. Do the same with the guys.
HB8
*assuming there are any