Bump for some "user results":
The quarry:
Six Stone bottles (1 Ruination, 5 Arrogant Bastards), and two Rogue bottles that I've been trying to remove the paint on.
First, I soaked in oxyclean for about a week.
Result: On one or two of the AB bottles, I could scratch off some of the paint with my fingernail, but it was going to take a LONG time to get it all off.
So, I rinsed, doubled up the intensity of the StarSan, and let them soak overnight.
Result: The paint on 3 ABs and the Ruination came right off, the paint on the other 2 ABs came off, but was much more stubborn. Hard to describe. The easy four came off like watercolors running off the bottle, the two tough ones were more like little tiny chips of paint or glitter. It came off, but took a lot more work.
I also noticed that the AB bottles had very slightly different designs. One of those groups had a little box on the side that says "Keep refridgerated numbskull," the others didn't. Unfortunately, I can't remember which group was which, but they probably changed the bottle design and paint application. I think the one with the little box may have been the one that was easier to get the paint off of.
Nothing could get the paint off the Rogue bottles (a Mocha Porter and a Dead Guy Ale). Can't even get a *little* chip of paint off those. Short of a deep hydrocloric acid soak or some sandblasting, they're on there forever methinks.