cleaning with microfiber cloths
Any dirty cleaning cloth can scratch. Washing will not necessarily remove all the grit. That's what scratches. Not the microfiber. Same principle with washing cars as washing SS appliances.
I LOVE my microfiber cloths but I use them according to task (ie. I don't use one on counters or glass that have been used on the floor). They come in more than one color, so mine are color coded.
If I could only remember to THINK about what I was doing before I did it.