It is surprising they couldn’t think of any business model where they don’t need to kill the chicken laying eggs. People participating there already gave away t

It is surprising they couldn’t think of any business model where they don’t need to kill the chicken laying eggs. People participating there already gave away their contacts, location, interest. How about just ads with sponsors with matching interests? How about rev share where organizers support sponsors? How about recommending interesting audience to sponsored events? May be users can opt out of ad supported model if they pay subscription?