Last year I was behind a little old lady who was two car lengths back from the white stop line in a left turn lane. Far enough that the light did not detect a car in the lane and so would not trip on the turn arrow. After two light cycles, I got out of my car and went up to her and tapped on the window (much to my wife's chagrin) and politely told her that she had to move up to the line to make the turn arrow to come on, which she did. By then there were a half dozen or so cars backed up behind her. We were on our way the next cycle. There really is no sense in getting aggravated by other drivers on the road, especially to lower oneself to the same level of discourtesy because of a perceived slight.
Personally, I prefer to keep a car length back while sitting at a light because I don't want to get rammed into the car in front of me if someone plows into mine. I've seen it happen.
John