Lol, did you type /res info. You ould find that someone just changed the Enter/Exit message to "elcome to %player's residence"
Wow that's weird, perhaps a bug in the system? I would send a bug report through starting a PM with the following: JackBiggin, AlexChance, Silken_Thread & eklektoi
I have 17 residences, just ask JackBiggin and Alexchance, they will hack you to have as many residences as you would like.