The achievements tag just got added for review to this question:
How to quickly score 5,000,000 points in Super Mario Advance 4: Super Mario Bros. 3?
The comment for adding it was that "this is essentially an achievement, even if Mario doesn't call it that".
While I agree it certainly is an achievement to get that amount of points, I'm wondering if it falls under that specific tag, which use is intended for questions about "badges, medals, trophies, records, distinctions or achievements", called 'milestones' further down the description excerpt, and is essentially "about earning a particular achievement".
Do informal/unofficial accomplishments fall under the achievements tag?