I think CC is a superb site, but the single biggest and most enduring irritant to me is unquestionably the Eliminated games - I have a stack of them, some of which are Classic games that go waaaaaaay back to when I was a much lower rank, which I generally forget about until I'm on a high and then one or two long-forgotten games end and I lose scores of points ......... it should be a simple matter to lose points at time of elimination that can then be 'banked' for the eventual winner.
Cheers
God's dad
PS - it would also be nice to get the apostrophe in my username back,but that's a very minor matter