Yes I have the same thing 2pines, and finding that most are on my friendslist but under different alts but mmmmmmm showing jazzy15?? LOL consider yourself with new friends I guess.

If they add you, they will appear sometimes. But, after you or they log out, it will disappear. You must add them in order for you to continue to see them. Also, if the friends you added log out and go into another account, it will show on your friends list. It is just their alternative account.

There was a glitch when the levels first appeared. If a person hit a new level while you were in the room that person was listed on your friends list. So maybe the glitch is still there from time to time. Just so you know I did just add you to my friends list, it was not a glitch and hope you don't mind ☺