Any guy who believes that shit is a sucker. Any chick who believes it is probably a golddigger who ain't worth your time, much less yer money.
(Naturally, both of these convictions will have exceptions, but them's my gut reactions...)
That's so fuckin cliche. I don't think that type of thing can ever be that cut & dry. It all depends how long you've known the other person, and what type of events the date is to consist of, and other factors.
Now that does sounds like a good general rule o' thumb to me... I mean, the minimum number of dates should be flexible (again, depending on various factors). But if on the 3rd date, you're ready to get naked, and the other party needs "more time" .... it most likely means that they reeeaally just DON'T like sex very much, or maybe just have a lot of hangups with it. So why waste any more time with them?
So to sum your thoughts up:
You don't pay for dinner b/c that would prove that the woman is a gold digger.
You don't need to give your potential date a couple of days notice b/c you are the better judge of that person's scheduling needs than they are.
You expect get fucked by the third date b/c not to is proof that she is fucked up.
Wow, you effectively absolved yourself of any need to be considerate in any way and conveniently blame any future failure on the chick in question. Nice work.