cleaning spark plugs?

As a dirt biker for about 45 years, cleaning plugs was a way of life. I wash them with acetone first to get rid of oils, then clean them with the sock device, then wire brush the threads, then blow out any residue (beads) and carefully check with a magnifier to make sure nothing was embedded within. I do this for my classic cars too, never, ever a problem. In my view it isn't about money, it is about unnecessary waste.