Hah, are you saying take their word? Because, when I signed up there was a checkmark to "allow adult content" which I did not allow, however as their income decreased, that checkmark disappeared and it was simply everyone was forced to have it. Saying "they'll tell you" is like trusting when a site says "we promise not to give out your personal information" which really means "we promise not to give out your personal information... unless we can make some money doing it" And if you don't believe me on that take a look at
http://www.oag.state.md.us/Press/2001/0516b01.htm which talks about the eToys website doing exactly that.
