I’m going to have to point out that this survey will be biased.

I’m going to have to point out that this survey will be biased. At least this is a Stack Overflow survey rather than a Y Combinator survey (which would be far worse), but even here — I use SO all the time but have never been asked to fill out this survey; many if not most people who use SO in the course of their jobs or for help with personal projects don’t even have accounts (because SO works better as a passive repository of historical good answers to common questions than as a means to have a novel question answered in a reasonable length of time — I’ve asked five or six questions and I’ve only ever gotten one response, months after I posted the question). In other words, only people who have an SO account and frequently ask or answer questions will be represented — and then, only those who feel like they have enough free time to fill out a survey.