This has always been a pet peeve of mine.
Over the years, I've had to explain to a number of people why their expensive gun was damaged or even ruined because they used some "expedient" cleaning materials or equipment.
People spend hundreds even thousands of dollars on a fine gun.
The AGONIZE on the internet about which is the "Best" lubricant.
They buy only the finest custom holsters.
They spend hours discussing which is the most deadly ammo.
The buy custom accessories, and have expensive custom gunsmiths alter the gun to be "perfect".
Then they shoot "Ivan's Discount, $2.95 per 100 rounds of cheap ammo, and shove God knows WHAT down the bore to clean it.
As for the cleaning chemicals, they'll use some awful and damaging chemical because someone at the range or on the internet told them it worked well, and is CHEAP.
To what end?
Just how much are you going to actually save, and is it worth risking an expensive gun?
People seem to have the idea that they can make something that will be as good, and SAFE for the gun as products big companies have had world-class PHD chemists spend millions of dollars developing.
You start getting the point after you've seen things like:
An early Python that looks like it had freckles in the hand polished bluing after the owner was told that vinegar was a good bore cleaner.
TWO, S&W target revolver owners who used synthetic pot scrubbers to remove fouling from the cylinder faces of their cylinders.
When the guns started to radically loose accuracy and they sent them in to S&W, S&W asked how in the world they had managed to round out the edges of the chamber ruining the cylinders.
The man who read in an old book about using mercury to remove lead from barrels.
His doctor explained just WHY you don't fool with mercury after he had some SERIOUS health problems, and his tests came back showing heavy metal poisoning.
The man who heard that you could use steel wool and a drill to clean a shotgun barrel. He heard "steel wool" and "drill".
Needless to say, he was somewhat surprised when I informed him that his hard to get, and SUPER expensive early Dirty Harry S&W .44 Magnum no longer had rifling left.
A customer who was given a recipe for making your own gun oil, which was "as good and much cheaper" than the overpriced store-bought stuff.
Unfortunately, the oil wasn't a good lubricant since it tended to evaporate, which left an additive that caused corrosion.
Imagine his surprise when I told him that that not only had his gun excessively worn from lack of lube, but that the additive had caused his gun to corrode internally.
He wasn't too happy when I asked just how MUCH money he had saved on lube, versus the price of his Browning pistol.
The gentleman with the custom-built SUPER expensive "Bean field" rifle that he'd waited 3 years to get from a top builder.
He was quite satisfied with the astounding accuracy, until it suddenly started getting to the point where he couldn't keep the rounds on a 50 foot target.
Outraged at being ripped off like this, he complained to the custom builder.
The custom builder was somewhat brutal in his explanation that you don't use drug store ammonia as a copper solvent.
The customer raging at Colt for selling him a defective stainless Officer's ACP.
The "cheap" crappy stainless Colt had started using had rusted while stored in the gun case.
I explained that you don't use steel wool to remove scratches, since the soft steel wool embeds into the stainless and rusts later, damaging the stainless.
The man with the High Standard Victor who was unaware that his friends suggestion to use an automotive store abrasive paste since it was as good a cleaner as JB Bore Paste and much cheaper wasn't quite true.
When last seen, he was looking for the friend.