I think, guys, that from a women’s perspective, part of the issue might be that we are generally markedly weaker and smaller than any man we might go home with. So we may have concerns about going home with a man that a gay man, being on a much more equitable phsyical footing, might not have to be so concerned about. We’re told incessantly to be damn careful about being alone with a man we don’t know well, with various horror stories and the much higher percentage of male rapists compared to female ones to reinforce the lesson, as well as probably some rather unpleasant encounters with sexually aggressive men who used the superior strength to get what they wanted.
I might talking out of my ass here, but I think that the reaction of Guin and Sue was at least in part an empathic response to what a woman would consider safe in that situation. I mean, the “meet somone on IM and hookup” concerned me too, at first, but I think it is a bit different for gay hookups as opposed to female-male hookups, given the gay men’s most likely equitable physical strength and expectations for sexuality.
At least, this is what I think inspired the “you shouldn’t go home with strange men!” part. I do agree that the extent of “safe sex” lectures in any even vaguely gay thread is sometimes downright amusing. OP: “God I love Streisand!” Next post: “Wear condom when you have sex!” 
But thanks for your support in yet another hijacked gay thread.