How many times have you sat down at your desk after someone else has been covering you or has touched your board for one reason or another and thought "Huh, I wonder why this channel is parked?"
The thought crossed my mind while mousing over a note on a cue "wouldn't it be nice to mouse over the little 'P' in the channel tombstone and read a little bit about why that channel is parked?" I could honestly use a note function for just about anything (palettes, presets) to give a little more detail about why we made something the way it is now. "Park" however is the one thing where I find myself wondering "does this still need to be parked or is it load bearing?" and "where's that post-it that said why these channels are parked?"