I was splitting some wood with a Becker Tac-Tool recently and it broke in half. The fact is, I was hitting the Becker with the back of a hatchet and had done so repeatedly. I was disappointed it broke, but it was my fault.
I'm not a big fan of the "blame the OP when he cites a problem" response, but, doesn't batoning come with the risk of the knife breaking -- especially in a relatively small knife? I don't have a problem with anyone doing it, but the risk of failure and its consequences would seem to lie with the user to me. I don't think batoning is abuse, but I'm not sure it is using the knife like it was intended.