I just received the Woot badge on SO, neat. But the strange thing is, I only visited the site once when I first noticed the badge. The requirement is to visit the site every day for 30 days, so how come I got the badge?
edit: wait, I think I get it. I have to visit SO, not Woot. Right?
Yes you have to visit SO, woot is just sponsoring the badge for now. It will switch back to enthusiast (its real name, and reason it seems out of alphabetical order in the badges listing) after the sponsor period elapses.
I have to admit, after I first saw the Woot badge, I started going to woot.com for a few days as a little experiment to see if that was actually what you had to do to get it. I eventually figured it out and stopped going.