I do a variation on this: I move ahead of the stop line and position myself in the sort of "triangle" where no car would ever go, the scoot across when the light turns green. This puts me where everybody can see me, but I'm not blocking right-turners. It also gives me a clear view of the intersection so I can be sure that the cars on the cross street have actually stopped, etc.

On the other hand, if I come up on the intersection after there are already several cars there, I'll just take my place in line, but will still scoot out of the way when I get into the intersection.