I flagged this answer as Not An Answer since the answerer changed it from an unhelpful answer to just a link. My flag was marked as helpful, my downvote reputation-loss was reverted, as was the answerers. The answer, for a brief moment went away. But is now back.
Update: The reputation-change that was revoked when the question was deleted is now revoked. Again. However, I'm still curious about why my flag was marked as helpful but the obvious not-an-answer not deleted.