I just noticed the description of the "Enlightened" badge seems contradictory.
Enlightened: First answer was accepted with at least 10 up votes. This badge can be awarded multiple times.
If it's awarded for the first answer from the user with at least 10 up votes, then it cannot be awarded multiple times. Am I missing something here? Or does "first" here mean that it was the first answer to a particular question and ended up getting 10 up votes and accepted.
Edit: This link has detailed descriptions of all the badges. https://meta.stackexchange.com/questions/67397#67399