I have got to say, reading all of the reviews on this site, that I have to wonder whether we are using the same thing?
Every one of my last 4 relationships, over the past 10 years, has been either with women whom I have met on OKC, or whom I have met through friends that I have made through women I have met on OKC... And I have never encountered a scammer there!
Maybe it's because I only spend time on women with a >= 90% match and a <= 10% enemy with me...!
I find their matching algorithm to be excellent... And it doesn't matter how silly the questions are, it will match you with people who answered similarly as you did!