MSN was Microsoft's early internet portal and messaging ecosystem, and its email alert became a familiar part of home computing around the turn of the millennium, when dial-up connections and chunky desktop inboxes were everyday life. As retro internet culture grew on video platforms, creators began reusing the chime as shorthand for old-school messaging, often contrasting it with the modern Discord notification. Its lasting appeal is nostalgia rather than complexity, a tiny sound that instantly places a scene in the late 1990s online world.