You're not alone - It sure would be nice if it were disclosed and easily discovered somewhere on the signup. I'm not opposed to the 15%, but nearly bailed as not finding "the deal" easily when signing up to be a sitter gives a real "shifty" feel. I searched help - no discussion of booking fees. I searched the site - no discussion of booking fees. It took signing up, then reading through the community posts to find the answer. That does not give me a good feeling of a partnership of site and sitter working together...