Anthony Palman is credited on 8 songs on NWTS. Was he the QM previously? Aint no telling.So 4 average songs (on a mixtape) out of like 100+ songs an additional 100 verses, means that he's Beyonce status
The difference between me and you is that I'm comfortable with saying "I don't know".
I'm not trying to guess, he hasn't denied or confirmed anything. He could lie, these rappers lie all the time and no one could sue him for lying either. Personally I'm still waiting for the Drake interview, and no I do not respect taking someones bars. But if it's less than a percent of all your verses I can forgive you and move on.
He's listed on most of the songs on Take Care too.
All I know is that QM is supposed to have largely written 1 song for Drake and 2 guest appearances. Nobody is denying that these exist so i'll take it at face value.
Now for the rest of his catalogue with additional writers (I won't even count the Weeknd as I assume that's all for singing - although the Weeknd did say he wrote Practice totally) - which is a large percentage of album work. I do not know how much input the other writers have but I do know now what the ceiling of input looks like and it is scary.
I can't think of another modern example of similar practice except for Beyonce. Chris Brown perhaps?

"No help that's all me?" Come on man!
but haters will hate