Every blog post you do "must have" a picture.
Every build you push "must have" release notes.
Every site you publish "must have" a FAQ.
Every organization out there "must have" a written mission statement.
Most "must have's" are reasons for going with everyone else and doing what everyone else is doing.
A way of seeking acceptance by compliance and avoiding blame.
"We are doing everything we must do! You can't blame us!"
But then, in more cases than one, not having those must haves is often a "must have" for building remarkable products, cultures, organizations and lives.