Today while I was reading a linked question on this answer, I found that Paul White, a moderator who joined more than 8 years ago and currently has around 55k reputation points and 900 posts, is showing up as a new contributor on this question.
He's not showing up as a new contributor on his self-answer to that question.
I thought maybe his first question was asked recently, but no, it was asked back in 2014.
According to What are the exact criteria for the "new contributor" indicator to be shown?, the new contributor indicator is only shown when the author first posted less than a week ago (which is definitely not true in this case).
Why has Paul White suddenly become new again? And why only on the question and not its self-answer?