New Board for Newbie
Took me a few minutes to realize that to post a new Sticky on a board is to type directly into the keyboard.
Initially I was trying to drag the Sticky Icon (top) in to the board area, but to no avail. Just as I was getting frustrated, and start hitting the keyboard, then I realize typing = Add new Sticky.
Perhaps add at top (for new users) "Start by typing to add Sticky"
Initially, I am on the mouse. It is a small leap for new users to figure out to switch to keyboard to add sticky. I think adding sticky would be the first thing a user wants to try out.
Hope it helps.