How big is the signup abandonment problem for adult websites?

[anonymozo]

Thanks guys!

@Bill to give a quick example, Pornhub and Tube8 both have a bunch of social features behind free signup. Both of these have nice signup forms though. Can't find the especially careless ones now, sorry - maybe I was in a bad mood when I saw them first but one example may be YouJizz with this:

Please Note: Your IP Address (xxx.xxx.xxx.xxx) has been logged in our system.

If I wasn't concerned about privacy before I saw that I sure am now.