HLaB
Marie Attoinette Fan
Be as meticulous as you want, I replace my cables every year and clean nearly every ride but sti's have the habit of snapping deep inside the hood. If you don't have stis it's a pretty rare event. I've never had it happen touch wood with a trigger shifter.But you don't need to adjust limit screws unless you damage you rear derailleur/hanger, if that's I'd be packing in the ride anyway. I've never had a cable snap on me like @HLaB describes but I'm meticulous with my bicycle.
Because I failed to repeat myself you have created a story in your head, extrapolated from it and then used it to attack my opinion.