But the one people can't stop talking about, tested its matching algorithm. In one test, it obscured profile pictures. In another, the site hid profile text to see how it affected personality ratings. And in a third, it told some hopeful daters that they were a better or worse potential match with someone than the company's software actually determined.So that man you thought was Mr. Right... Wrong This comes after Facebook announced it toyed with our emotions: it changed facebook feeds to see if users would be happier or sadder, based on what they saw. Ok cupid is one of the fastest-growing dating sites in the country.