Ha ha... Should have realized someone would post that joke.
Again though, I think "Mario's Pad" or "Super Pipe House" would be better.
Another idea would be, "Mario Castle" (his castle in Super Mario Land 2).
If we need to stay with the hotel idea, we could use "Hotel Delfino" from Super Mario Sunshine or "Poshley Heights Hotel" from Mario and the Thousand Year door, or the "Marrymore Suite" from Super Mario RPG.
Or maybe us one of the Inn names for the title of the social thread.
I dunno, just something that was on my mind.