I know I posted about these before and I could have sworn a GM said they were both fixed.

1. Setting attack stance to 0 and attacking with a 400 rank weapon still allows you to learn from low level critters with no risk.

2. Retreat, retreat, advance, repeat still allows stealth learning at 500+ ranks on goblins with 0 risk.

Something else I don't think I posted before but noticed tonight: Killing goblins with 26 ranks of 2HB and 300+ melee mastery teaches melee mastery at nearly the same rate as 2HB.

~Minstrel Ascot, Bladesinger of M'riss