My knowledge of PUA is almost entirely from the comments here, too. Part of what gets on my nerves about it is that it seems to have a model of relationships in which people are in them solely because of status and fertility markers. There's nothing I can see about people actually liking each other (or, for that matter, disliking each other), or not being completely fungible if a better deal comes along.

There's that bit where Harry explains Lily's choice completely in terms of status issues-- this suggests that PUA/evolutionary psychology at least seems like a plausible set of theories to you. It's possible that I'm conflating them as having more in common than they actually do.

It gets to me that Hermione seems to be thinking in terms of herself and Harry having a Relationship rather than focusing on what they actually are to each other-- I think she'd have better sense. Or maybe I just hope she would.

It's interesting that I've gotten upvoted and a couple of positive comments for my complaints about the most recent chapter, while still getting information which suggests that Hermione is generally seen as more plausible than I see her. I tentatively suggest that my suspension of disbelief is broken, while other people are seeing some specific implausibilities that don't bother them nearly as much.

One suggestion about the Ravenclaw girls' vote-- they may well be voting for the most entertaining drama for themselves rather than what's best for Hermione. This may have already occurred to you, considering that so many of them wanted to catch Harry.

In their case, more of them should have generalized from one example.