I like the sticky slides theory myself. At least that'* what I'd check first when I went to replace them. Wow. Only 10k miles? That sucks...

I agree with the sticky slides. Clean and regrease them with silicon brake slide grease. If the pins are rusted, either put them on a wire wheel and clean them up really good or replace them.

You wouldn't necessarily feel a pull to one side. I know I didn't when my truck did the same thing 40K ago.

Lack of lubrication causes them to rub more. That rubbing doesn't cause a pull, just premature wear. Clean, lube and they'll treat you good. I do this everytime I change my brakes. It'* easy maintenance to keep from burning through one pad.

i agree with the bad caliper ive heard that it could be a break bleeding problem.

The usual symptoms of brake bleeding issues is a spongy pedal that could slowly sink to the floor. I've never seen a bleeding issue wear one pad like his pics. Either the caliper should be filling or not, I've been wrong before...but would put $5 that the caliper slides and pins are not clean and lubed. As well I'd put another $5 on once it'* done that in 5-10 thou both sides are equal.