Okay. I think surveys are disappointing to everyone. But more disappointing to the lower countries. At least you earn reward when you get kicked out, whereas that same theorem reach doesn't reward me at all when I'm kicked out.Although surveys are my least favourite way to earn I do very well on Theorem Reach. They give very short surveys and also disqualification points so even if you don't qualify you will be rewarded for attempting a survey.
My biggest gripe with surveys is being kicked off at the end after spending a considerable amount of time on it. For this reason I now only attempt surveys of 10 minutes or shorter.