The reason for this is because we have different things to ask each of those two groups. For active devs, we want to know how they currently manage projects, what works, and what doesn't. For "lurkers" we want to know why they don't develop.
That came out wrong. We'd like to know why lurkers don't take an active roll in volunteering for LJ.
Read the polls for more information. The response has already been phenomenal (n=40, n=15 for active devs and n=25 for lurkers, both in the span of one afternoon).
Check out the polls: