I never met a prostitute, who was not demanding payment in advance.

The whole article is nonsense...feminist nonsense.

Even if a prostitute agrees to be paid after, and even in case the customer does not pay her at all, it is still not rape - maybe you can call it theft or fraud.

Legally seen however, in feminist countries, it might be rape, as the prostitute has the right - a typical legal loophole - to withdraw her consent even days after she met her customer...but this might happen to every man, even to a married man who had sex with his wife...it might happen with no money involved at all.. suddenly out of the bad mood of the woman, consensual sex is rape.