As AirBnB won't say why they cancelled Lance's membership, we can only speculate. It's a presumption, but only that, that it was related to commercial use of the properties he might have hired, or that it was a more specific knowledge or suspicion as to what he might do. If I were sure it was related to Lance's gay escorting activities I would advocate boycotting AirBnB, but not only am I not sure, I really don't know at all. How they found, or suspected him to be in breach of their TOS, we'll never know. I can see the positive role the sharing economy plays in democratising things like accommodation and travel, but the companies facilitating these services need to be more transparent in how they operate.