Hogwarts is a very old school. Generations of students lived there, met at various places, played games, tryied Spells and left stuff there, that they forgot and never needed again or bought new in vacation.
I would like to have more details in Hogwarts to create a better atmosphere and to motivate the new player to stay on KT and to give the player in general the motivation to explore Hogwarts. for Example I never saw anybody in the part of Hogwarts near the library or walking though corridors, that don't lead straight to a public place or a class.
Maybe, if a builder gets an idea for decorating a part of a corridor, any cornor and stuff, he/she ask an admin+ who can discuss it with an owner, and give the perms to decorate if they like it. Due to that fact, that since flat world is down, that builder battle each other to claim a building job on the server, bc they are rarely.