I've heard people complaining about cyclists running stop signs for years. After seeing it on a TV news spot, I went to a local coffee shop where one busy street terminates at another. There is a stop sign, everybody is required to stop and everybody has to make a turn left or right, I counted cars while I had my coffee. Of 100 cars; only 17 actually stopped, exactly 50 used their turn signals. Yeah, there's plenty of blame to go around, but the real point is that we all treat stop signs as yield signs and none of us use our signals enough.
Marc