Incorporate it into your models of such guys. I think this can help moderate problems such as being "easily spooked" and "cutting it short to prevent dysfunction." Instead of thinking that this guy is just too clingy/creepy/codependent/etc., dig a little deeper. If the flirtation or relationship just isn't going to work, then so be it, but we can at least strive to leave things a little nicer than how we found them. If I, as a guy, try to give other guys advice in these matters, it just seems like I'm trying to create a competitive advantage for myself.

I am trying to promote mutual understanding so that communication between the genders works better. I never have and likely never will experience being in such high romantic demand, so I have no visceral feeling for how women feel in that situation. The best I can do is to keep in mind what I've been told by women whenever such a conversation occurs. On the flip side, most women in rationalist/skeptic/etc. groups have never experienced such prolonged romantic isolation. If we want to increase group conscientiousness of issues which can drive women away, understanding needs to flow both ways.