This morning, I awoke to see that I gained the "create tag synonyms" privilege - which is usually awarded at 2.5k rep - but I only have 2499 rep, and I can't see anywhere that I would've gained the 1 rep and then lost it again.
Below is a screenshot of what I mean:
When I logged out yesterday, I believe I had 2489 rep (after answering and getting an upvote on the regex/JavaScript question).
Did I get this privilege by accident? I'm not complaining that I have it early, just wondering how.