Maybe its a good thing I am not a smoker other than the smoke I make with black powder.
Part of the problem we face is that we have a jag that is sold for the caliber of our rifle. We know that there will be fouling left in the bore and if we let that fouling build up it will make loading difficult at best and have an adverse effect on accuracy. Stupid us, we don't want to admit that the store bought jag is really too large. We also don't want to take a few seconds to put a couple of nuts on the threads so we can chuck the jag in our hand drill to run the jag over a file or some sandpaper. We are afraid that we will turn the jag too small and loose the patch down the barrel at the breech.
Now those folks that shoot all day at the range and never wipe between shots are also kidding themselves. Most of them use a very wet patch that wipes the fouling from the bore as they load the rifle between each shot. Since the rifle is shot quickly, the moisture from the wet patch doesn't really hurt the powder. Sure the chamber is filling with fouling, but what the heck, the bore is wiped between shots.