Okay, lets say I am developing a "social network" for a specific group of people, its a pretty closed one so not for everyone. The main revenue is not coming fr

Okay, lets say I am developing a "social network" for a specific group of people, its a pretty closed one so not for everyone. The main revenue is not coming from advertisement, because there is nothing we can advertise to the users. So am I a liar? Or what? I can use social network for marketing without implying that we use and/or sell user data