[Perfectlap]

i'm on the other side of the fence. NO MICROFIBER ON PAINT, PERIOD.
I'm somewhat hesistant to use it on glass as well.

Microfiber is fine as long as its 100% clean. Those split fibers that are good at picking up sediments and such, are also stuborn in letting them go.
You have to be really diligent about cleaning them thoruoughly after each use.
MF towels are excellent for cleaning wheels but its overkill for smooth well maintained paints. All towels with 'open' threading will scratch or micro marr your paint depending on the quality of the towel. You want see the micro marring at first but gradually over time it will become apparent. I've noticed those who use MF towels on high end cars also keep the car garaged and out of the elements most of the time. Thus there far less cleaning and there isn't so much of an isssue with the MF towels digging into the clear coat. But daily drivers are a whole other can of worms.

I use Sonus towels that have tufted loop ends(closed) for washing and removing waxes and polishes.
And then I use a different towel to buff, a dedicated Concourse buffing towel.
Both are sold at Autopia.

The ironic bit is that nearly all of the swriling and scratching of a paint surface comes from cleaining and drying with the wrong towels and Buffing with a polising towel.