This is an interesting discussion. I've been wondering why cyclists blow stop signs. I anways stop at all signs, regardless of the time of day or the level of traffic. Not stopping just seems so alien to me -- like deciding to go outside without putting pants on.
Other observations:
It takes energy to ride, and a stop sign is a chance to rest for a bit. I'm less tired after a ride with many stops than after one with no stops.
Stop signs help safety by giving you a chance to scan the intersection for bogies before continuing into it. Lots of bogies around here.
Paul