Can this do what SharePoint and private wikis can't? My team has tried both with varying degrees of success. In my experience it's always just "easier" for people to pester those who should know the answers.
It's not the "feds" like the federal government -- it's the "Fed" which is short for Federal Reserve Bank. The Fed is not part of the government. It's as "federal" as Federal Express. https://www.youtube.com/watch?v=1pVV4n2lKHk
I do like sending and receiving letters because they are personal. The envelope is hand-written and the correspondence is, too. Machine created snail mail kind of defeats its own purpose.