In order for "Maf54" to show up on someone else's buddy list, both parties would need to be signed on to AOL (or AIM). Also, if you wanted to know if he was online you would add "Maf54" to your buddy list; you don't have to be on his buddy list. If a person selects the option to "block" others, then that person won't show up as logged on even when he is in fact logged on.
Is that true for all IMs. I have been told I am on people's buddy lists and I don't use IM.
My daughter's entire buddy list shows up, but the names of those logged on at the time are highlighted. My question really is, can the list itself be accessed without logging on. IOW, if someone wanted to know all the names on Foley's buddy list, would they have to log on as him to get it.