We'd need to see their financials, which is tricky since they aren't public yet. There's also the issue, Steve lies about everything, so should we believe he's telling the truth?
But my guesses would go like this:
Since they've been spending other people's money, they probably haven't been watching expenses closely. Their P&L is probably dominated by payroll and rent. I can't help but feel that programmers are drastically overpaid, which is a symptom of the same issues, that there's a lot of other people's money chasing a finite supply of techbros.
The reason I think programmers are probably overpaid, by the way, is the number of man-hours they allegedly put in, versus the quality of their output. Reddit is a particularly shocking example of this.
In any case, the other people's money doctrine is to grow into profitability, which means burning money on spurious shit until some magic happens. Not exactly a winning business model.
Then you should head on over to 4chan.org, where you can be an obnoxious child to your heart's content.