Nope. I'm with Bhod on that one. A clean cut and you can thread easily through eyelets and easier around toggles. Plenty of knots to substitute for guy toggles. Also cord can be used to repair broken rucksack straps, substitute trouser belts, repair broken walking pole, tourniquets , slings and many other uses.
I carry some in my pack. As well as a few plasters , scissors, lighter, gaffa tape around my waking poles, spare prescription and medicines (only if on a long walk), small sewing kit (ready threaded needle and white thread, Compeed plasters, and a small travel size bottle of olive oil/ T tree oil mix for my feet.
Oh and a couple of spare tubes of fruit pastilles.
I carry batteries and chargers for my phone/ GPS , antiseptic spray, toilet paper but see them as essentials rather than emergency use. I have a strong aluminum triangular tent peg I use as a scat shovel, dual purpose.
Interesting to see what others carry.
Today in Northumberland again having a go at walking coast between Seaton Sluice to Newbiggin by the Sea. There is no accepted path as such and involves road detours around the Rivers Blyth and Wansbeck. Setting off soon, just finishing my brekkies