Does it really matter where Steam keeps its files? Surely your documents folders and app/app support folders are on the same HDD.. Steam manages games like iTunes manages music, you never look at the data anyway.
It hasn't been that buggy for me.. Only weird thing is how it switches colour profiles when you're running Portal. Oddly Crossover used to do the same thing but they fixed it at some point.
It is a big matter. Documents folder is for documents.
By boot drive/apps drive is not backed up because there is nothing on there that I care about loosing.
Why I should backup XXGb of game data which need not be there was a stupid decision.
What about people who have multiple accounts? They going to have the same data over and over and over again?
Stupid decision to put it there, end of. Why the BETA testers did not pick up on this I do not know. Maybe they did and steam just ignored the problem.
Should be in the steam package in the apps folder IMO.
iTunes manages music yes, but music I backup. Games I do not.