I've had 6 punts so far, on 4, the girl has applied some lube to her before sex. It turns me off because I think its a sign, that they are not turned on, or find me ugly etc.
Too fucking many for my tastes, but I never take it as a reflection on myself and neither should you. It turns me off a bit as I prefer the natural smell, taste and feel of a woman.
Many do so out of habit, or if they have been shagging raw all day it is not reasonable to expect them to be an endless supply of female natural goo.
If a woman is attractive to me for RO, I will maybe try to get that in first. If she is not, I will ask her to "go easy" on the lube and promise to "go gently" as I enter her.