Can someone with knowledge of all of these early programs explained how they worked? I remember getting booted from rooms (and offline) all of the time during this period. It seemed like the Wild West, where all of these outlaws were above the law. It was glorious even though I was constantly in fear of being “punted”.

Now as a technical adult I’m very curious how they could do it. Did they send a certain “magic” byte sequence to my username? Did they overload it somehow? I can still vividly recall an IM with a stream of sinister ASCII and suddenly poof! Offline!