He understands that men who are specifically attracted to his dick and would not be attracted to him if he surgically inverted it are not straight, so he has some level of self-awareness and self-respect. He isn’t depending on a house of cards to validate himself and others to conform their identities to prop up his. Props to him. It is actually funny to see that comment justifying these men whose main requirement in a partner is “penis” as totes straight and then the OP being like “well obv they’re not.”

But the answer to his question about why these men are going for him specifically and not other men if “penis” not feminine artificial secondary sex characteristics is the deal-breaker is pretty obvious and he basically answers his own question: they have a specific fetish for feminized male bodies (as he guesses) and/or they want to maintain the image, identity, and label of being heterosexual when they’re plainly not. And in AGB they of all people should know the social pressures against appearing outwardly gay or bisexual. Anyone commenting there who acts as if those pressures aren’t there has my immediate suspicion.

I also re-read to see if he indicated his belief of whether it’s possible for a man actual straight man to be attracted to him, but he really didn’t indicate one way or another and leaves that open. He just said he wants someone to be specifically attracted to his feminine attributes, so he is not the type who is saying he wants “cishet” men only for validation.