Maybe I'm the only one here who regularly clears his cookies/cache, but I've had to use my key to get back into the site multiple times. My key has apparently been 'disabled' due to over-use.
I already emailed support about it, but I just wanted to warn other users. Don't clear your cookies.

It's disappointing, yes, but that's why I registered for multiple accounts.. .hehehe...
to be honest though, none of those other accounts have received a beta key. oh well.

If I were warned I might have used Google Chrome to keep my GOG cookie, while using Firefox for everything else.
I'm logged in here at work right now, as it still has the cookie.

I've had the same problem. I'm using Firefox, which allows to automatically delete user data (cache, cookies etc) - but I didn't notice that there is a limit for the beta key until it was too late.
It'd be better if you could access the account login page directly without having that cookie...

Same problem here using Firefox. At least they are good enough to reset the key for you if you get in trouble with this. Fortunately, we only have to deal with this until the beta's over.

Double-post again! argh! Why's it giving me a 404 error when I try to post?

Double-post... but it was giving me a 404 error every time I tried to post...

I got it a few times too. Seems ok now.

Looks like it's fine now. It was weird; I would post my message and instead of showing me my post in the forum, it would lead me to the 404 page. So I just pressed "Back" on my browser and tried again. And it 404'd again. I did it one more time, just to be able to copy what I put down, and try to paste it later when it was working, which 404'd as well. Then I logged out and logged back in, and saw my 3 posts and thought, "oh crap." lol. But it worked fine from that point.