Well I'd love to know what evidence that this is a guy at this gloryhole!? The reasons for the rules are on that website, and protect anonymity, and reinforce the entire kink and mystery or a pure gloryhole experience.... and besides, if you know where to look, you'll find the real woman on social media... but they are discreet and professional :-)
And let's be honest, some guys who start talking at gloryholes are just so damn weird it's enough to put anyone off... sounds of slurping and groaning is all you need.