VNT:
I've never noticed a "we paid these warranty claims" section on the web site.
That being said, the fact that they've EVER honored it is both good and bad.. it does prove their oil can fail, but it also shows they have the integrity to admit it, at least some of the time.
Seriously, though, not checking the dipstick? I've heard of VW voiding a warranty for that, so Amsoil must have been in a seriously good mood that day. Or they assumed all their dealers are smart enough to check the dipstick....