They are after all just strings. Nothing you do with them that works for you is foolish. Cut them or not. Wind them artistically around the headstock or trim the excess to length to make antennas for your Amateur Radio transmitter, it really doesn't matter. But cutting them does absolutely no harm, the manufacturer has not only already cut them, he has also designed them so that you can safely trim them to the lengths required by your headstock.
Ken
Ken