I noticed myself and others have begun receiving the enthusiast badge on superuser. As best I can tell, superuser launched on July 15 (see also question 1). That puts the launch 29 days ago (considering today August 13, which it is in UTC); which means no one could receive the badge yet. Additionally, this supported by a quick click through to the profiles of many of the users' who have received this badge, which shows them as having accounts for 28 days (which I assume will be 29 when the cache updates for today). Is this a bug, or am I missing something?
Hmm, you're right. I got my Enthusiast badge earlier today but I just assumed that it had been 30 days since it went live. In response to Brad Gilbert, I looked at the site for about 2 seconds before I signed up for my account, so there are no cookie issues (if that's what you're getting at).
Maybe Jeff is modifying the Enthusiast badge to be a little nicer by allowing people to miss at most 2 days? This might make those going camping sleep a little easier...