The statistics are probably based on wishful thinking about how bad women are.
Alex posted a picture with statistics; it's not very clear, but you can find a larger version.
I and many of my female friends (including both average and very beautiful ones) have had extremely negative experiences on dating sites. Tons of creeps who are all about "give me a blowjob" (here's an example of a real message, if you need it), nitpickers, and people whose mental state raises some doubts and questions when communicating with them. And a normal guy with average looks and decent communication skills is some kind of mythical creature.
This is the whole point.
A perfect example of how overheated the dating market is. A woman sees Alain Delon and says, "well, he's just... ordinary... a six out of ten at best."
Небо – угроз не слышит
Небо – ведёт особый счёт
Небо – тебя найдёт