Nice one
Fullflat
!

Also, they sell a CRAPLOAD of knives and there is a notable lack of search results on "warranty denial" so there's that too. MT hasn't been on my radar much, but from what I understand, their customer service used to be pretty bad, and now it is reported to be pretty stellar. They've given it some attention with notable improvement. And maybe similar to Spyderco and the disassembly issue of old, they continue to revise and change over time...hopefully continually for the better.
We should probably hop over to the Auto sub to continue this discussion if warranted

)), but just to add a little more, here's the wording from the Warranty page. Sounds like common sense to me:
"BLADE SHARPENING
We understand that some customers may prefer to maintain their own knives. The warranty will remain in effect so long as the blade is not improperly sharpened and the handle is not damaged or stripped due to disassembly, determined at our discretion. If you void your warranty, parts and services may still be available for purchase based on availability.
Do not sharpen knife if you are not completely sure on the above statement or if you feel the warranty could be compromised."