Some warnings on using some of the items or products mentioned in this thread.
First off the green or any other Scotchbrite pads have some serious abrasive particles included in the makeup of the pad. Using one on any gun is pretty much the same as using a piece of emery sanding cloth on the gun. The green color indicates the "grit" of the pad. There's also rust red pads which are more coarse and some grey ones which are a finer grit equivalent but still very much a case of being similar to taking sandpaper to your gun.
On to polishes. Flitz, Mag Wheel, or pretty much any polish that has a white creamy look to it contains a fine but very abrasive powder in the mixture which is the same as the white abrasive compound sticks used for buffing wheels. So each time you use such a product it "cleans" by sanding away the stain along with a little of the metal of your gun. This is why you should not use it on a blued gun. But it's doing the same thing to a stainless gun as well. It's just not as noticable to the eye due to the color of the stainless not changing.
Using a polish such as Flitz or something else now and then isn't the end of the world. But to use it as a regular cleaning product on a frequent basis is going to wear away the edges of the cylinder chambers over time along with the crispness of the edges around the outside edge of the flutes and such.
The fact that the lead away cloths say right on them to not use them on blued guns suggests that they are charged with some of this same polish. Again now and then, such as a couple of times a year, will take a lot of years to notice any change. But if you use an abrasive cloth of this sort weekly or for cleaning up after each range session you may find it is causing a rounding over of the edges around the cylinder pretty soon.
A quick test for any product is to put some on a regular stainless spoon or butter knife. Rub it in with a clean cloth vigorously. If the cloth comes away with some black on it then it is abrasive and the black you're seeing is some of the stainless metal that was worn away by the abrasive action. A product of this sort is going to similarly wear away your gun with repeated use.