With Question Mark (which is practically mandatory reading since I can't imagine Dan being able to recap everything about how Sarah's powers work), and now the hopefully untrue speculation about the Susan and Diane arc being moved forward in NP, I feel like we're getting to the point where some of the canon NP arcs have to be read to understand the main comic. This kind of worries me because it seems like in the future, if a new reader was trying to get into the comic, they would probably assume NP was all unnessacery side stuff without anything important, which would end up with them getting really confused if they were just reading the story stuff. (I'm probably worrying too much, he'll probably find some way to make it clear which NP arcs need to be read when.)
TL;DR I worry Dan might be making EGS less accessible to new readers