aim stalker
One who uses AIM to stalk others online by obsessively reading their profiles and checking their away messages. Those people stalked do not know that they are being stalked.
Julia: Hey, did you hear? Brad won't be at the party, he's going skiing this weekend.
Lauren: How did you hear that, you and Brad aren't friends?
Julia: I'm an aim stalker, I read his away message.
Lauren: How did you hear that, you and Brad aren't friends?
Julia: I'm an aim stalker, I read his away message.