Given its information collected about me - i'd like to see it.
GIven its information about me, relevant to metrics used for other people - i'd like to see others.
If its hidden it means nothing.
On top of this, the 50-50 win scenarios, I don't believe that the matchmaker does this, they even say in the command chair post that given a mismatch where you're likely expected to win - if you do win you won't move much, if you're likely to lose and lose you will again not move much. Its the mismatches where something unexpected occurs when your Elo/MM changes more.
Ofc, you can't do anything more than speculate unless you can see it with numbers in action.
As an edit - in SC2 leagues you can see Wins/Losses at the tippy top and other relevant amount-of-play stats. It isn't all blind and its not blind to the person playing it on entering the match as it tells you whether you are favoured or not and awards points accordingly at the end which you can see for ranking purposes as well as having a hidden MM.
Edited by Exoth3rmic, 28 February 2013 - 06:01 AM.