Bingo.

But the bone is cooked with the steak. Eventually, the VCs will want a return on the cash, and then you need to have customers that want to use snap-chat. There are 2 options then: Turn it into a paid service that you pay to use, or turn on the ads. I think we all know that most kids aren't going to pony up to use snapchat, so ads it is. They have to turn on the ads, and then, as the marketers are the customers, their voices become the most important. Eventually, all the VC cash is eaten away and snapchat is yet another photo-sharing service with a 'community' and some lite blogging/captioning attached.