i read that several times, but when i owned left 4 dead for a few weeks, i created the steam community profile and set "german" in the profile (not the language of steam, that doesnt matter) and after doing so, Left 4 Dead was censored.
Believe it or not
I changed it again, then deleted a few lines in the registry and now it's uncut again. I also selected "benelux" as the download server..
I actually don't know what really changed the "cut - not cut" but now all games are uncut again.
(Currently playing Battlefield 2, pretty cool game)
my l4d is uncut to and its no retail version buyed from steam, in presale time