I'm still not seeing how not rewarding pp helps, people will still lose their scores, still be mad and people will be confused about not gaining pp.
IMO it's black or white, keep the ranking charts or remove them. I am far more inclined to shout out and mod a map after qualification because I may possibly play it to set a competitive score. The best way to spot issues with a map is to attempt in numerous times, I will not try to set scores on a map without a scoreboard.
So from my perspective: Remove scoreboards - fine but qualified becomes disassociated with players, don't expect to see their views of a map unless their an active modder.
Keep scoreboards, remove pp until rank: Expect just as much bitching about DQ' and more confusion about pp.
Keep scoreboards: We're where we are today. This is my preference.