User blog comment:Sannse/Five Things Every Admin Should Know/@comment-1038387-20150710172004

I would've said, "these are no-brainers", but a year or so back I've had a resh admin express genuine surprise at the existence of Recent Changes. He was wondering how another user got a Lucky Edit badge, but WikiActivity showed noone but him editing. Turns out that user was flooding Recent Changes with a lot of File: namespace cleanup edits... so yeah.

The things on this list might seem the most simple things to experienced admins (and editors), and no-one likes to read a "n things you didn't know about X" list and answer "knew that" to all... but to plenty, this might hold something new and useful.