New feedback from Outlook.com
All my other Outlooks (Mac, Mobile iOS) put Archive in the message list for easy access. I'd rather have that than "Mark as unread" or "Flag". Do I really need 3 "bring this to my attention later" triage actions right in the list (mark unread, flag, pin), with only one "Get rid of it" option (delete)?
-Albert Andersen, engineer on Outlook for Mac (alias albertan)