why do so many ppl choose Derpy Hooves to be Japan??

I mean really! thats just dumb who would do that? seems like u guys ran out of characters because that makes me say "what the heck!" JAPAN IS NOT CLUMBZY AND DERPY IS NOT SHY HOW IN THE WOULD U CHOOSE DERPY TO BE JAPAN!!?? sorry... its just that... there NOTHING ALIKE AT ALL!! WHOEVER MAKES DERPY JAPAN U HAVE NOT SEEN EITHER HETALIA OR MLP AT ALL ):O DERPY IS EITHER ITALY OR SOME OTHER COUNTRY, NOT JAPAN OR GERMANY OR ANY SERIOUS AND NON WEIRD COUNTRY!! I'm not trying to say Derpy is a bad pony she's cool... but... WHAAAT? i ship MaudPan (Maud Pie and Japan) thats just wrong! sorry for over reacting.