Pretty certain I worked out with a guy who may have been gay for a year. He didn't miss any spots, wasn't chatty and was always on time.
I couldn't give a fuck about someone being gay and am not even sneaking on being cute enough to assume every gay person wants to be gay with me. I just think people who act like that are creepy assholes who happen to be gay. Those same people would be flashing women/children if straight. There's no need to blame this shit on being gay.
I've never pointed blame at being gay. Not directly. In my gym, what the guys do is apparently accepted, in how they act.
Where I workout, I have been hit on. But more than not, they just stand back & stare, or even will try and rub up against you as you workout. It's creepy shit that they do. If they want to approach me and ask me out, that's fine. I can say "I'm not interested" or "Sorry, I'm not gay." But when you have a guy following you around the gym just waiting for you to finish with a piece of equipment (as I did a couple times as part of a superset) so he could jump on it and only does so once you're in the 2nd set but is finished before you are...the behavior is just odd.