Real talk. People only started SAYING 'SNESSSS" or "S-N-E-S" when the internet became popular and people were typing about it to each other. It was shorthand meant only for the sake of brevity in the typed word. People only started saying either of those words when they started seeing it typed online. Nintendo Power and gaming publications called it a Super Nintendo. People, said out loud, "Super Nintendo". Nobody should say either SNES or SNES. If you have time to talk about video games, you have time to say the words "Super Nintendo".