Just for clarification, you want to use project pages as tutorials? Or you'd like to write tutorials using something like our devlogs/blogging tools?
Viewing post in Brand New Tutorial Section
Not sure which one would work the best. A normal project page would be fine and you could post links or download videos/files? Just like we have different sections for games, assets, books, physical games. It would be nice to have tutorial sections people could buy or donate to for content creators.