I think they appear when you work quickly or because for their last batch they banned a bunch of people (including me, I can do this batch though so if you're banned, it's usually a soft ban until a new batch comes out).Question for those doing the Computer Vision Turk hits - why do I sometimes get the "gentle reminder" popup above the instructions pop up and sometimes I don't? Am I being yelled at for doing something wrong? I'm pretty sure I'm following the instructions.