Have you ever exceeded the speed limit? Have you ever changed a lane without signalling first? Do you signal prior to turning into your own driveway? Do you always signal when you are leaving a streetside parking space? Have you ever cut someone off, even accidently? Have you ever walked across the street in the middle of a block?
How about the OP or the other posters to this thread?
Here's the takeaway: 1) People who are shocked when others choose whether to obey a specific law but do the very same thing would be called hypocrits by some and 2)
As the OP, and since you asked

- pointing out first that I did not mention speed limits, yes, given a choice between exceeding the speed limit and getting rear-ended, I have exceeded the speed limit.
However. I stop at stop signs (and count to three). I stop at red lights; if there is no "no turn on red" sign, and it is safe to go after the same three-count,
and I'm turning right, I proceed. If I'm the second, third, etc., driver at either the stop sign or turning right on red, same thing - stop, three-count, proceed if safe (MANY people seem to think if one car goes, everyone goes

). I signal. I signal turning. I signal merging. I signal entering a highway. I signal exiting a highway. I signal changing lanes. I signal when there's only one way TO go. I signal pulling into my parking lot. I signal pulling into a parking
space. I signal pulling out of a parallel parking space (admittedly, not out of a perpendicular space because there's nobody affected by my action who can see a directional). I signal when the road seems to go straight but I know that's really a turn. I signal when there's any question.
Yes, I have probably accidentally cut someone off. I wasn't aware that's in the same category as traffic suggestions, but okay.
No, I don't cross in the middle of the block (jaywalk).
Next question?