i kinda understand what OP is saying. I don't care that much but it's definitely a turn off to me. I rarely go on dates but if i already set something up with a chick and i saw that online, i'd probably change plans and try to get her to come straight to my place and if not just cancel. In other words, i would automatically take her less serious.
then again, i know most chicks are just saying it as a way to copy guys when we say "she could get it". They're probably not serious most of the time. But still just hearing it/reading it is a turn off. it's kinda like you know chicks fart and burp, but it's still a turn off if a chick does it in front of you with not a single fukk given.