Here's another cliche that bothers me: the tendency of fanfic authors to add worldbuilding material, and then bash canon characters (usually Dumbledore) for not taking advantage of that added material in canon.
-----
Stand between the Silver Crystal and the Golden Sea.
"Youngsters these days just have no appreciation for the magnificence of the legendary cucumber." --Krityan Elder, Tales of Vesperia.
-----
Stand between the Silver Crystal and the Golden Sea.
"Youngsters these days just have no appreciation for the magnificence of the legendary cucumber." --Krityan Elder, Tales of Vesperia.