I do agree in some ways.
I have seen some deaf gay guys at NTID who have their hair horribly twirled upwards, wearing super-tight shirts that sometimes reveal their navels, hug every guy they think is gay, socialize only with other deaf gays (sometimes hearing gays), wear small pants (probably belonged to their little sister), etc.
When I asked them why they do that, they say that it was to emphasize that they are gay.
To me, I don't care how you dress. If you're gay, great. If not, fine. I don't care either way. I don't need a deaf gay guy to dress and act all like that just to show me that he's gay.
How do people know I'm straight? They might figure from hints that I've given based on admiring women that walk by, talk about women, or admit to having a girlfriend.
With gay people, the same thing applies. If a gay guy hints things by admiring another guy that walks by or talks about a date he had last week with another guy, I would probably figure he was gay. I'm not going to judge him immediately because the fact he is gay doesn't matter to me. What matters is how that person acts and dresses.
I do know a few gay guys who dress unusual, but it's because of their personality... not because they want to advertise themselves as gays. Those are the kind of people I can respect.