i think it's pretty easy to see the simplest motivation for this project: all the twitter users who post screenshots of the iOS notes app. they literally gave it the same name.

is this better than a screenshot of the notes app? IMHO the answer is a pretty obvious yes. how it compares to various other blogging platforms isn't super relevant. it's not a blog, it's a feature for people who are already on twitter and already using twitter to publish longer-form content in suboptimal ways.