Bad ratios are very easy to get though. It often boils down to that particular webmaster, their sites, how they promote, traffic sources, etc.
If I am doing gallery crap 1:2500 is fine with me, hell its expected.
If I am really filtering it and it skips all pre made material and goes direct to join, anything more than 1:25 and I would be wondering whats up.
If I am tossing my random or crap traffic at shit 1:15k is nothing abnormal.
However there is something to be said about a few listed. Some just um lets just say they do not convert
