Yeah, it is. There were a lot of bad submissions. I'm just experimenting with Mechanical Turk right now. Initial impressions. . . 1) a lot of fraud (about half sent in pictures of their cat or something) 2) most people are from india 3) Most of your replies come in the first 3 hours or so. After that it wains. You have to resubmit after this 4) There were repeat submissions. Three of them looked like they are from the same room, same camera. But people claimed different locations.