The bots just found an open door and came through it. I don't think there is any particular rhyme or reason.
I'd blame it on the year but wasn't it supposed to be like 2012 or something?
I'm not worried tho - my credit card expires in 20
13
The bots will take over government computers in 2012. Imagine a world run by free movies online bots, or free porn bots or worse... payed gaming online bots.
I've tried the captcha thing before and watched its massive failure. Do not worry, my cock of own is raging.