Maybe I am a little bit hasty on this one, and you probably have this thing already in mind, but I will still just leave it here, in case you haven't.
When you are chatting with someone, for example, I like it personally to look that person up and see how much points he has, just so I know who I am talking about, the only problem is that you can't search in the highscore-list, and also can't click on his name to go to his profile(when he's in the chat, you just highlight him) . Either of this would be very nice I think.
I am sorry if I am overenthousiastic and this is already planned, but I think it's something very basic and just very nice to have.
Thanks for reading,