[4clicknet]

I've found MT results quality to be a problem. 95% of the workers are great, but you do have occasions where you get a bot completing the task or someone being deliberately careless in the hope that the HIT will get automatically approved. To combat that, I give the task to different workers until 3 answers match and that works well. It's worthwhile once you've automated, but that's worthwhile only if you've got a fairly large number of tasks.