I think the issue, with regarding some of the ' male' advice, is that it isnt very balanced at all.
There is a very real risk of some posters taking the lone voice as gospel, and ending up more hurt/ confused and possibly doing something they didnt feel comfortable with... such as third date sex, because the solitary male voice has said thats whats expected.
I also think its worth some posters thinking about why there are so many unwarranted attacks on one poster, its been happening for as long as he has been posting.
With regards to whens best to have sex when dating, the only time, is when it feels right for you. If you are holding out because you labour under the false illusion that it might help it turn into a relationship, then dont. Bants post illustrated that perfectly well.
For a woman, the most vulnerable part of dating is not the first date, as you are not invested, but post first sex. If the woman feels a bit insecure and is looking for reassurance from the man she has shared a few dates with, cooked for and played host to his cock... then shes insane and likely to make him run for the hills.
Of course, this is just bull, and its most likely the guy was only interested in sex from the off, he got it and will come up with any excuse to make him not seem like a bad guy for doing that.
If you have sex when you want, because you want to have sex, then you remove all that crap.
The best dating advice is not to worry about the other person, but to pay attention, listen to yourself, if it feels good, do it. if it doesnt, or you are worried, angsty, or something doesnt sit right, avoid. And to remember, that its about your needs, not meeting the needs of some man.