The company ordered a review from me a month ago. After a month of having them, it’s safe to say that I’ve earned more than 10,000 meta points already or over 2,500L$ just for posting my referral link on my free lindens list.
I really haven’t done any survey, offering, game or contest after that review and it seems like even with doing nothing, I was able to get more than 2,500L$ in a month. What more if I was actively participating?