I have bought the game, validated it but couldn't install it. By validating the game I received the option to preload so I did just that. I understand how steam works and it is no problem for me, most games aren't available before their release dates so no one notices. The thing that bugs me is the fact that Console users (i.e. my friends) are now happily playing the game.
It might be just jealousy, I'm not denying I envy my friends for being able to play it. But I feel punished for buying my games legally. If I wanted I could have played the cracked US version for a week. Instead I choose not to, I choose to support the devs by giving my money for their product, but then are unable to use said product.
bottom line: I feel screwed for playing on PC.
If Xbox Live and PSN had both also locked users out of their games until launch, I would still be slightly disappointed, but I would have a lot more understanding for it.
You to could have bought a console version, but decided to go the PC route.....which had limitations. (I'd like to say good on you for supporting the company and not stealing it. Even if it kinda "blew up in your face", from your point of view.)
Chalk it up as a learning experience. Read the box, and if you don't like the limitations/requirements, don't buy it for PC. (But don't steal it either!) Though, in my opinion the PC is always the best way to go. Note the PC community can, and has fixed issues for ourselves. Good luck doing that on a console.
Just be patient. I bet once you can play, you'll forget this, what I see as a minor annoyance (In this world of murder, forced six, genocide.) .and you will enjoy the game. I do understand the frustration, but nothing was kept secret and simply sprung on you out of the blue to annoy you.