What I always wanted to see with the Friends List is the user being able to put in a custom status message instead of the boring "Away", "Do Not Disturb", etc... it's usually around when i'm looking for an HA group, and wish to tell that to everyone on my list without actually spamming it... they'll see it if they are looking for friends to join them..
regardless, additions to the friends list is always a good thing
With a full F list I can not keep track of everyone, everytime I make a friend or help someone from my F list I tell them I will not remember you when you pm me you have to remind me what we did togeather or give me a hint about how I know you.
It gets very bad when you have a full list and remove friends to put more on.