Having gone through this in the last six months, I found I had more than enough information, and what was standing in my way of leaving was a somewhat complicated mixture of emotions surrounding the act of leaving. Of course, a clear headed look at the circumstances let me wipe all those emotions away, and I left at the right time, and without regrets.

For devs, a great rule of thumb to keep in mind is simply this: When the paychecks stop, so do you. The odds of any startup getting anywhere drop off a cliff once the money runs out, and the founders are running around desperately, talking about commitment and challenge and reward.