[Tyson Schmidt]

Sitting at a stoplight with the clutch in, will put more wear on the clutch release bearing as well as the thrust bearings on the crank.

I'd be more concerned about the crank thrust bearings than the release bearing. Especially sitting in traffic on a hot day at idle with hot, thin oil and low oil pressure.

I've seen motors apart that were in the copper on the thrust surfaces of the #1 main bearing, and all else was fine. A sure indicator of a daily-driven traffic victim.