Thanks, my blacksmith great grandfather & others spent the winter months in Tennessee making knives from sawmill blades. The 1914 steam engine that powered the blades stayed in the family until modern times. Lord knows I have seen a zillion blacksmith file knives over the last 30 years or so.
That doesn't mean that there is anything wrong with that. Recycling files, chisels, punches & other iron monger's items into knives has a very long history among the blacksmithing fraternity… for the last few thousand years or so.