Risk to earn proved to be successful. Before projects would run incentivized activity based on debt. Proclaiming a token would be distributed based on point allocation etc and rewarding so widely into a user base whose likelihood of holding/utilizing those tokens back into the ecosystem was low. When you use Risk to earn you acquire the cost of distribution up front. You wouldn't expect a customer and seller exchange to be any different unless there were layers of insurance. This was the flawed nature of the P2A approach. cough up some funds and bet on yourself knowing there can only be winners if there are losers too. Simplesbria. @playcambria the most notable pioneer and they will most likely continue leading the pack.