Because it shows how full of shyt your are as a hip hop fan and don't know wtf you're talking about mentioning rappers rhyming words together that don't rhyme. It's called slant rhyming and rappers been doing that since the beginning of rap 
even super lyrical and technical mcs, it's not a southern rap thing 
even super lyrical and technical mcs, it's not a southern rap thing 
...that we speak it at all is just an unfortunate byproduct of history. ..I support b*stardizing and flipping that shyt anyway we see fit for our liking