Now it only lacks one feature - detect/remove all "bad" files (Not only ronilse's Hip-Hop but also those 15 year old mp3s with bad dynamics, etc). Unfortunately I have no idea how this can be done without massive cpu load to analyse each track in deep.
So, basicly by detecting bad dynamics it would delete all the today's new releases as those are mastered / compressed beyond anything that should be called music (especially Metallica's new LP is mastered for the new level )
Correct - you got the idea