A good idea for a blog post would be to compare the features of your project with Laravel and Silex, both of which also do matching and anonymous functions.
I understand yours has nesting but with all the frameworks out there, it becomes hard to choose a newer one without a comparison with the existing ones.
I think a raw feature comparison wouldn't quite capture it, because nearly all micro-frameworks have essentially the same features on a list or comparison grid. I think the real "magic" of Bullet requires using it a bit to fully understand why it is a fundamentally better and more flexible approach. I have thought about making a screencast series or a nice tutorial with an example app I made with it. I am leaning towards a screencast or two because I feel a lot of the niceties of this functional approach have to be explained since most people are used to the more typical flat approach.