Yep, I raised that hypothesis in the latter half of my comment.

Sure, I wanted to point out that it may well explain away the whole effect, leaving the "adaptation that fires when a man is feeling desperate" explanation looking unnecessary — and excluded by Occam. Flirty skills are skills and follow the usual patterns for skills; that they're involved in reproduction doesn't give them any more evopsych fairy dust than (say) language or music. (Which get a lot, but they don't get "being bad at singing is an adaptation".)

I don't wish to rationalize exhibiting low-skill behavior at all.

I didn't think you did — "some folks" was meant to imply "not you, at least not here". But some people do that. See, for instance, Elevatorgate and any number of other cases where folks readily engage in motivated search to find reasons to stick up for the creeper at the expense of the creeped.