I already posted here once before but I'm going to do so again following the recent announcement. As other people have said, the restrictions are particularly annoying considering that when the game first came out on Steam, there was no warning that accounts would be locked into the Steam version for all future expansions, and now, unable to launch the game through any other means than Steam. I understand the reasoning is regarding fraud, but there are so many other games on Steam that don't force this, and leaving players who have legitimately bought the game with no option but to go along with it is very annoying.