They're a strange and weird peoples, matryx. The American culture practices some grammatical and lingual ideals that would make most English lecturers wish to throttle themselves with their own tie. It's best not to wonder why because in the end, you'll only lose your sanity over it and end up ... just like them! *Ominous.*
*Coughs.* Just to help save your sanity, I call a # a hash too. I also call a £ a pound.