Now that I am ready to talk about what I have mentioned offsite. It's actually been on my mind since the thread's creation but didn't want to propose it because it is "Too much" from my point of view. However, based on what you and many others have been arguing for the past couple of years, you have basically listed out details arguing a case based on
this page. If you truly want to keep interpreting "Paper Mario and Meat Mario are different characters from different worlds/universes," then at least look at the other details for what all that literally entails. Because that would ultimately conclude that the Paper Mario cosmology is an entire fictional macrocosm contained within a single book within "Meat Mario's Universe." And as a result, it would meet the criteria to upgrade the cosmic structure and everyone one and everything in Mario lore all the way to
1-A. As for reading the criteria in length, it's not just a mere he looks at them and they all appear to be paper like the so called disqualifiers, but rather, that one book is a literal container of an entire Universe/Multiverse (Multiverse if you include the fact that the infinite parallel universes shown in Super Paper Mario are also paper).
Likewise, some would think the plot of Paper Jam being that "The entire Paper Mario cast grew and popped out of the book and it's cosmology also merged with Meat Mario's Cosmology sounds like a disqualifier." My response to that is maybe, I'm not an official
1-A expert and thus I wouldn't have the best judgement on that. But I still have read bits and pieces and know that other similar examples were accepted anyway. The context for that interpretation is the PM cast grew and expanded to be the size of RM cast and the cosmology expanded and merged with RM's macrocosm. Even if we assumed just regular universes, and not sure how any individual character was effected, but the book alone would perform a 2-C minimum just by opening. However, the other details mentioned still suggests turning a Low 2-C to 2-A sized structure into a 1-A sized structure to merge it with another 1-A sized structure. As for elaborations, those are exactly what you brought up here entail.
The rule of the thumb was that lesser real characters being able to
naturally travel to the qualitively superior realm is the disqualifier, but is not the case if there are powers and abilities making use of immersion to make them grow. PM cast cannot naturally escape the book, it's the RM or MM cast using or dropping the book is what enables them. More or less similar to how Superman and Batman cannot naturally enter the 6th Dimension, they need Mr Mxyzptlk to magically expand, grow, and teleport them there to enter. Luigi dropping the book to cause PM cast to exit or Bowser Jrs using the book to trap cast are more so just the same principle as Mxyzptlk using powers to send people to the 6th dimension.
Now on to what this all entails, it would imply everyone not from Paper Mario would be 1-A and other stats like LS and speed upgraded to Immeasurable by default. Only characters who wouldn't be effected be the Paper Mario cast, unless they had Paper Jam exclusive keys who would also have them in the regular universe. But wait, according to some implications, Paper Mario world has their own version of
Mysterious Book. Not sure where that source comes form or if those were just easter eggs. But if true, that would in turn suggest even more PM worlds within the same PM worlds by that line of logic. If each Mysterious Book has another Mysterious Book within it, that would effectively make the scaling
1-A+. Since Infinity - 1 is still infinity, PM cast would be there too.
Now, I never wanted to propose all that as I knew full well it would be far more controversial. But based on our current wiki accepted interpretation of Paper Mario and Mario being separate, that's literally what would all entail. Now my question is, is this all what you truly want? Or perhaps the better question is that truly what you consider more reliable than our current ratings or accepted scaling? A merging of the profiles, or interpreting Paper Mario in Paper Jam as merely a slightly past self of Mario that came from a magical history book would be a way to prevent all that. I'm still in the mentality that Mario is just Mario whether he is paper, pixel, yarn, claymated, 3D, ect. And I'd rather not agree with any of the 1-A stuff, but so be it.