No, it's not to simply sell ads. You build something slick and shiny, then you pump VC money into it and you keep hyping (otherwise known as "pumping") until you can get numbers that look good. You can just spend that sweet, easy VC money to buy users and spend a dollar to make 10 cents because of that "growth" you are buying.

Then, when those numbers you are buying (and also all those fake accounts you are ignoring) start looking really good, you go public, the VCs make out like bandits and all those institutional and private suckers buy those bloated shares, trade places with the VCs and slowly ride the shares back down to zero where they belong.

Wow, really? I figured they're a bit fancier, more serious version of Yahoo Answers. I wouldn't have thought they'd have any venture capital at all.