A questions about spark plugs

That would work on a plug that's just dirty..

But a plug that has internal damage, nope.. No amount a scraping on the electrode will help if the electrode is smoked inside of the ceramic.

If you are going through spark plugs like a child goes through lollipops, something is wrong - jetting or heat range of plug or something.

But yes, you can clean plugs. I have had good luck with the dip in gas then brush with a wire brush method, which probably does not do nearly as good of a job as what you are talking about. Some people sandblast dirty plugs, but I am afraid some sand will get in the top end by doing that.

I use break cleaner and a wire brush and a piece of sandpaper when i clean the plugs on my tractor. But my 2-stroke don't eat plugs.. so i just replace them.

Once you have jetting issues correct and you're not sucking up gear oil through a seal, a spark plug in a 2 stroke should last a long time.
However, I've cleaned plenty of them and reused them in emergencies. One time I was riding a bike jetted horribly rich and accidently got on a 14-mile one way tight Hell Trail with a lot of up and down and no way to turn around and go backwards. I went through the three plugs I had in about the first 5 miles. After that, I had to take my needle nose, spread the spark plug apart and use the serated edges of the needle nose pliers to file the plug, bend it back and go another two-three miles before doing it again. I did a lot of cursing that day.
Still, for a regular $2.50 plug, just easier and better to buy extras.

trist007 said:

Obviously on two strokes, one is bound to go through spark plugs like a child goes through lollipops.

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Not if it's running correctly. I've had plugs that worked for over a year on my YZ's, and only changed because I wanted to, not had to.

Yeah, I've been using the same plug that came in my yz125 when I bought it in '06. Just regap it once in a while.