You can block someone and see that list. It would be nice to know if you are on someone else's-I know sometimes I realize I left IM open when away from the computer or am doing something that makes it inconvenient to chat...so when it's reversed and I don't get answered it would be nice to know if that was the case on the other end or if I am outright blocked-
Is it privacy settings or what? I will have someone look like they are online/on im or camming yet when I scan to look for them they aren't in IM or camming yet it says in the inline screens and on their profiles that they are. And I don't think they are blocking me or anything because the one has im'd me twice when I was on and another flirted so...just weird-