I don't know if someone has already mentioned, but it ties account management to a single PC. So you can log in from elsewhere, but you can't change your name/password/email and other account-related settings. So if someone got ahold of your details, they could still log in, but they couldn't change your password or email unless they were on your computer.lacktheknack said:Well, it IS optional.Irridium said:Yeah, what if we change computers or something? Or, like he said, travel?lacktheknack said:So if my computer explodes, or I go traveling, can I unwire my Steam account?
Thats one of Steam's selling points, which is "take Steam with you wherever you go, and download your games anywhere!".
It's an added layer of account protection, not a "locked to one computer" gimmick.