I think part of the all caps thing thing is world building and relates to the graffiti influence in hip hop. All caps being and hand style used in many graffiti tags (and the MF DOOM tag). With DOOM a lot of the time you have to infer the meaning of a rhyme from what you know about DOOMs influence and his other works.

"He write "VIK" in a sick demented handstyle" -Viktor Vaughn (another alias), Raedawn.

Or ‘Monkey Suite’

“DOOM, all capitals, no trick spellin'”

“Got what it take to get it through your thick melon”