A brief bit of thought will make it clear that if the strings don't actually buzz on the frets, the height of the action won't affect the sound directly, just your playing.
I'm all for low action as it suits my style and I don't find it stops me 'digging in'. If I want to use a plectrum (Ace of Spades), then I want to get some fret rattle as well!
Anyway you are all wimps, Carol Kaye went for 1/4" above the fretboard at the 12th fret; she could probably strangle someone just with her fretting hand alone...