I wouldn't be asking this if I weren't already suspicious of the member in question to begin with. Is it normal for the song beside "Listening to:" to stay the same for days and weeks on end, whether they're logged in or not? Does it mean something happened on the servers end or the members end or they're somehow making it say a specific song? Stupid question perhaps, but I'd really like to know. It's getting weird seeing the same song day after day after day, just makes me more suspicious.
No, it shouldn't... but it could (in theory) if their computer crashed or something. It's been removed for that user anyway.
You need to run another app (I think it is called trackmonitor.exe) in order to update the song in the forum. I also had the same song showing up for a long time since I wasn't running that other app.