Not a new phenomenon, but it seems to be on the rise and very erksome. I am getting very sick of red-light hoppers, not jumpers. The fact is a lot of red-lights at main junctions can't be jumped because of crossing traffic and the very real chance of being squished. So I am riding to work and overtake another biker, but get to the next junction and stop at the light. Same biker comes cruising past and stops at the corner in front of me. Not looking at the light or the line but looking at the traffic to see if he/she can pull away as soon as there is a gap or they stop coming. They pull away and so do I but now I am stuck behind their slow moving ass. I can't overtake them because they are moving so slowly and overtaking cars are moving too quickly to move out and the road is too narrow, I am boxed in! I have no choice but to wait for the road to change or a gap in traffic. If I do get to move out a few hundred yards down the road I just get to the next set of lights and the whole maneuver repeats. Thankfully I can often put some distance between myself and them if I catch the end of a green.
I know this isn't a piece of etiquette anyone ever gets taught but if I get overtaken by another rider (this rarely but inevitably does occur) who then stops at the next lights I don't put myself in front of them. There are a lot of new people cycling, which is good, but by-heck some of them are knobs.
Feel free to criticize my don't-get-in-my-way/holier-than-thou attitude, or my use of run-on sentences.