Imagine if there was additional information available on the signpost when you hover the mouse over the name. e.g. you've got 5 names on a signpost, the top signpost leads to the next person on the Fruit Route, the bottom person is on the Sparkly Route, the middle post is the Route of all Routes, the second post is a friend with Beans and the fourth post leads to Street Games.
If along with the name of the friend you had a field that could hold a short note (maybe 10 characters), this could display on hover.
Tell me that's not a brilliant idea and would save a lot of "note clutter near signposts. :)