I want to know, why is the letter Q always followed by a U (at least in all originally english words...)? i mean, everyone knows that if there's a "q", there'll be a "u" after it....so we might as well eliminate the "u"...

Pronunciation. If there's no "u" after a "q" then the "q" has a "k" sound, and wouldn't it make more sense to use "k"??

Because Americans and the rest of the world is too lazy to make words that start with q and another letter other than u. It might be too hard for them to use their mouths to pronounce a hard word....a rapper might come along and make a slang like that i.e qkuaked - messed up
qcuazy - um..a cool way to say crazy i guess
qkilin - chillen in a gangster way

My bet is on Snoop Dog to start such a qcuazy trend. The man almost invented a whole new language you know.:m: