That's a good point about stake that I hadn't considered - that a voter is more than just a reader, he is using his stake. It explains why larger accounts seem to want this - while my $200 stake is a lot for me, my investment is primarily my time and effort and not just what I can get my money to do for me.
I think you are wrong about incentives to play with others. Play is its own incentive, and putting a tangible reward on it can screw up the natural incentives of human interaction. Ever hear of the candle problem?
Hi there! Since you don't have any active post, I'm upvoting this comment as a "thank you" for participating in my #payitforward initiative. :-)
Thanks! (Guess I better get on my next post!)