I have had the honour to be awarded three(!) Enlightened badges within a single(!) minute today. Not that I want to complain, but since the three questions were from different askers and of different age, I am somewhat curious if this happened by pure chance ... ? Maybe even a bug?
Congratulations. You've been a "victim" of a serial upvoter.
Sometimes people target "near-badge" posts, and sometimes they just go through everything and upvote.
In a few hours (about five, which is 2:00 UTC) the script which detects these sort of things should reverse these votes. But the badges will stay.
(As change would have it, I had both these kind of serial upvotes happening to me today.)