I have the "gay voice" to an extent and I know I don't purposely put it on. Recently I actually tried to make myself "sound straight" while ordering ice cream at an ice cream shop. It's hard to judge how you sound by listening to yourself in real time, but it felt like the harder I tried to sound straight, the gayer I sounded (Chip once claimed that in general the harder you try to fly below people's gaydars, the easier it is to spot you; I don't know why). After that I decided to not worry about my voice or pay attention to it anymore. So the question is (as I said) why people think it's done on purpose. I see this particularly on reddit, which is not a homophobic website, so I don't think it's just homophobia. Perhaps they're only referring to the gay men whose gay voices are over-the-top, which often are put on. I don't know. I had a math professor in college with gay voice, significantly more than my own. I'll be honest and say I found it annoying at first, but I didn't judge him for it because I figured he can't help it. Eventually I got used to it. I can't imagine believing that he makes an active effort to sound like that, especially since he would have to be doing it literally every single time he speaks.