Jerry, As far as I know the only possible reason not to use bare wire (assuming it's copper) is because it oxidizes over time when exposed to the air and there-bye jeopardizing it's ability to conduct as intended.
Another reason is that some of the cables are constructed of such fine gauge individual strands of wire that they would easily break off if left unterminated.
-IMO
Another reason is that some of the cables are constructed of such fine gauge individual strands of wire that they would easily break off if left unterminated.
-IMO