GAW – I’m astounded, absolutely flabbergasted. It’s not simply Halacha, it’s the attitude. If we’re going to talk about Halacha well then there’s nothing wrong with boys rating girls either, even thinking that they find certain girls attractive is not Halachically problematic, but Heaven fore-fend the shallow, external-obsessed boy who does so… Girls? Now apparently it’s fine for them to be shallow and obsessed with the way a guy looks…
There absolutely is a problem with guys rating girls. Histaklus is Assur. So is having a discussion regarding girls and their attractivness (as possibly part of Lo Tasuru and SZL). Girls have no such chiyuvim or Issurim.
As an aside, it may be worth me noting that in every case that I personally know of it was the girl that instigated the relationship, not the guy. In the two cases I know of where it went beyond ‘first base’ it was the girl that pushed for it, not the guy. And this, I believe, is trace-able to the attitude that it is the guy’s problem, that girls are faultless and are allowed to rate guys’ attractiveness with impunity.
If she instigated with a boy, she is at fault. As for the rest, it is a “slippery slope” argument.