Originally Posted by
njkayaker
It's defensive driving. The driver has no assurance that you are going to stop.
Agreed.
This may not be true everywhere, but where I ride few cyclists stop and yield the right of way at stop signs. If a car is stopped at a stop sign and the cyclist is approaching a stop sign crossing the stopped vehicle's right of way (for example: approaching 4 way stop with driver stopped on left or right; or approaching 2 way stop and driver is stopped in oncoming lane with left blinker on), the majority of cyclists will slow, then take the right of way and go through the stop sign unless the car is already in motion.
Most drivers in my locale expect this, so the cyclist who stops and yields the right of way is the one gumming up the works.