This is strange because... You'd think LJ would have sense enough to tidy up what it already has, because it can apparently make $10 every time someone changes a user name - or community name. Instead, they reduce services like phone posts, free community stats etc., paid jnl promo, community_promo, etc., and charge more for other things which nobody really wants.
I am not going to change my user name. I looked this up because I want to merge a few of my communities - and that, too, is hidden in obscurity. I figured I might find a lead if I looked into name change. Ugh!
And, over at LJ Console References, I found something called a, "Shared Journal," where more than one person can use a single personal journal, I guess. That's an idea I had long ago. But where is the lead for that? Is that just another of the many services that LJ has dropped? Nutso. Anybody have any input here?