What is this sportsbetting you speak of :) ? We are a Sports Prediction market... we have PAID PLAY options that rely on the skills of the players to pick the correct outcome and hedge their prediction accordingly if necessary to form an optimal strategy and have an opportunity to be a market maker.
Initially we have commissions for market facilitation, 3% for now, however if the Steem Community embraces our project and allows regular games with post rewards to flourish, those featured games can be commission free on the PAY PLAYS side, the demand for Steem to be used as a prediction currency and the positive effect on price could far outweigh the share of the rewards pool we may have, but experimentation will most likely be the order of the day.
Ultimately, our ability to innovate depends largely on the pushback or support we receive from the community.