I can't count the number of times idiots have left during countdown because the percentages are 30-70 or something, when the game is ST (shuffle teams).
And then if you auto balance to stop idiots doing this, "pro players" go "lol u noob it's ST why autobalance LOLOLOLOLOLNOOB".
If I'm not mistaken, the expected win/loss is a prerequisite for the win bonus/loss penalty calculation in Elo-type systems. I rather like it, though it's quite obvious it's not a great estimate.
I have to say this should be not displayed at all. All this % and PSR display does is make games ten times longer to get started. This stuff should all be viewable outside of the game creation only, and autobalance can still be used without that information being displayed.
It's so faucken stupid.... Some people just want to play for fun and to learn, then you get judged by 15 year old virgins because you don't have a positive PSR. DotA was all about fun and this game just makes people selfish, vulgar and make kids think they are the most successful people in the world with high PSR.