I used to pull up besides strangers, but one time I did that there was a girl on a bike and she said hi & it is her first day learning to ride. When the light turned green good thing I let her pull out first as she was all over left/right and almost smacked the car in the next lane. I had to follow for a ways (was my direction of travel) and she killed the engine at the next stop light and almost dropped the bike, again weaved around trying to get the bike to go when the light turned green. Bad shift timing, over rev, etc. Ever since, I don't pull up besides strangers. I'll pull up almost to their back tire but on the other side of the lane, staggered configuration. Now I just do that without thinking. But never had anyone bad mouth before.