Currently there are no fees at all, but I'm planning on charging fees for verified accounts and verified ratings when I finish building the rating system (its pretty much MVP at this stage). The terms of service you noted are somewhat too broad for my taste, but that's the legal-speak my lawyer required for covering myself.
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.