I very rarely ever load www.livejournal.com (the main page) to see if I need to log in or if I am already logged in. Being able to place a thing at the top of my friends page which tells me who I am logged in as (if I'm logged in at all) would help me to know for sure that I'm not missing any friends-locked posts due to not being logged in.
Sometimes I'm afraid that I miss entries because my cookie accidentally expired - or the servers didn't accept my username that time - or something odd like that.
But posting a viewer's username at the top of a friends page would be helpful for that. Is there a way I can do that in my journal views?