Yeah, I don't believe the ghostwriting shit primarily because the logic pretty much extends as far as you want to shit on someone. Wayne writing for Birdman, Drake writing for Wayne, Nickelus F/Kanye/Quentin/rumoured female writing for Drake, etc. It's a rap rabbit hole that's pretty much a consequence of paying too much attention to this shit, like unironic use of the term "industry plant."
It's definitely possible and the candidates have been out in the open for a while (part of the reason I think otherwise), but his style is so ubiquitous and all the pieces of the puzzle clearly only come together when it's Drake's shit proper so... I don't know. On the flipside this is the dude who freestyled off of his Blackberry. It can go either way.
That said,
Time to head to bed.