> However, in five years they probably have the added pressure to start thinking about something called profitability.

We don't talk publicly about finances, but let's just say that's something that's been thought about already and that bit of what you're saying doesn't scare me.

> There are going to be a ton of tough competitors in this space and eking out revenue growth month over month is going to be much harder.

Codecademy (free), Code School, Pluralsight, Lynda, Udacity, Coursera, Udemy, free online content. Things are already tough, and they get tougher every day. We have an amazing team that works like crazy, 32 hours a week, because we believe we're uniquely situated to work on this problem. So the competition thing won't magically appear. It's already here.