If you use a knife regularly, and its a folder, the user should check it. Screws can get loose, things can wear, nothing is forever. CRKT warns the user of this in their instructions and recommends routinely checking to assure screws are tight.
Problem with this guy, is he blames the closure on "blood" from his deer but it still closes on him now, thus it was a problem with allignment, wear or was bad from day 1.
He doesn't name the maker, but there are more than a few (Terzuola, Crawford, Carson come immediately to mind) that make these kinds of knives that have a 15 year history of good performance under stress. Sometimes an exprienced maker with a proven design trumps the knifemaker flavor of the month or the one with the best price.