because....
if I tell you this, you gotta promise not to tell
promise?
Not to brag, but I've met Tite Kubo before, and he's like the sweetest guy on the planet!
http://media.photobucket.com/image/tite kubo/muccpowa/01.jpghere he is
and I asked him the very same question
and he said that bleach was originally meant to be snipe
and be about guns
the soul reapers had the arrancars outfits, and the arrancars had the soul reapers uniforms
but Mr. Kubo decided it to be about fantasy sword fighting
so he BLEACHED (thats were the name came from)
the arrancars uniforms
and bleach was born
and I woundnt want It to be named anything else
smile enough said