FTC, you were being a bit unfair, and sarcastic, to those of us who expect a lock to hold up under pressure or torque which tends to close the knife. Sure, grandpa managed just fine without any lock at all, and so do I if I know there's no lock: I'll modify my technique and expectations of the knife accordingly. But some of us would like a folder that goes beyond such limitations, and that is in part what advances in lock design and execution are all about.
Maybe some of the testing can be ridiculed as planning for a baseball bat attack on the spine of your knife, but some of us like double bladed knives and actually train in using a sharpened top edge. A double edged tactical folder is a legitimate and useful instrument, and a solid lock is absolutely essential for many techniques, not just repelling an attack by a crazed Sammy Sosa.
Some folks think a double edged knife is only good as a tent peg; others think it has utility as well as defensive uses. But even for a single edged knife, the more secure the lock the better: accidental impacts and torques do happen in a variety of circumstances and uses. Yes, the lock is important to me, and I'll keep looking for better and more secure ones.
Whoever it was that said a folder will never be as secure as a straight knife was absolutely right. That's one reason why I still favour straight knives: but folders do have some advantages, and so the search continues.
