Tomoe said they'd collab less because the fans kept pestering each of them about the other and both of them want to stand as streamers of their own beyond the duo.
I love stories that explore the relationship between Yukari and Reimu and Reimu's childhood. She's such a unique person who grow up in unique circumstance.
It's really cool of ZUN to publish full doujins (as in, the creators are writing themselves, not ZUN) in the magazine, it really makes the community feel like they're part of "Touhou" themselves.