There was an instance here where the boresnake’s guide broke and the boresnake itself was stuck in the barrel, being nearly impossible to remove. That would be why that person said what they said, I think.
Not sure about others but I use a boresnake on my rifle without issue. Don’t yank it, pull smoothly and you shouldn’t have any problems.
Bore snake and traditional patch cleaning when needed. I only have 1600 rounds on the Afghan and 1500 on the Recon and see no problems with the bore finish or accuracy. BTW I don’t shoot with handload, target grade ammo so my comment is with over the counter XM193.
Keywords “stainless barrel cleaning,” orange Search button: https://www.m4carbine.net/gtsearch.php?cx=003496919632624929056%3Adhiwgm0hbaa&cof=FORID%3A10&ie=UTF-8&q=stainless+barrel+cleaning&sa=Search&siteurl=www.m4carbine.net%2Fforum.php&ref=www.m4carbine.net%2Fshowthread.php%3Ft%3D116415&ss=3973j1290861j25
Keywords “stainless barrel cleaning,” grey Search, limited to the Precison Rifle - Semi-Auto subforum: https://www.m4carbine.net/search.php?searchid=4998610
Merged, since a thread-bump for clarification would’ve made more sense.