Nonsense.
Learn to be a better gunsmith.
I do not have the issue because I stopped using steel wool a very long time ago. I have seen it on many occasions in the work of others and have repeatedly proven the possibility of it to others by doing test boards.
I would also like to point out the particles and freckles are often only visible with a little magnification, though their presence creates a haze or loss of depth in the finish.
