Yes, in the same way an online stock market interface is a betting site. In the same way that stock markets allow (in principle) accurate valuation of companie

Yes, in the same way an online stock market interface is a betting site. In the same way that stock markets allow (in principle) accurate valuation of companies through people buying and selling stocks, a prediction market should enable better-than current prediction of the future- because the people making the predictions have skin in the game, and have an incentive to change their prediction if they genuinely think the event will go the other way.