What are your fees currently (as the site operator)? I've only found ...
"Fees: For its services, Bitrated may charge fees, as it sets forth from time to time. Such fees may be deducted in source from any transaction, or be paid separately."
The functionality that it currently has will always remain free, with no required fees. The verified accounts/ratings would be optional, and act both as the profit model and as a kind of fidelity bond [1] to make scamming less economical. If you could replace accounts every day and send tons of fake ratings for no cost, it'll be easy to cheat. If you're investing some money into your identity, the the users using your services would know that you have something to lose by harming your reputation.