Exactly. Most people who work for non-profits do so out of passion for the company and mission because the salaries often are going to be about 80% of market ra

Exactly. Most people who work for non-profits do so out of passion for the company and mission because the salaries often are going to be about 80% of market rate. With no equity to compensate with either, you are left mostly with the believers (or the less optimal workers). I'm not sure I see Twitter's mission being strong enough to attract the developers it needs if it were to become a non-profit. Further, while there are large media grants out there, I don't really see a huge pool of capital willing to cover Twitter's operational costs with donations.