Maybe encounters should reward a fixed amount of exp (valid even for "diplomatic solutions" rather than going on a kill count basis? I've always preferred goal-based exp rewards to granular ones, anyway.
P.S. Not to mention that "enemies attempt to flee" doesn't have to mean "You'll let them do it".
They do. I want to say this was implemented last patch, though I could be wrong.
Just as an example, the group of adventurers outside the crypt at the beginning provide 50 EXP if you convince them to leave you alone and not engage in combat.
