The site is down for me, but the cached version features the tagline "The medicine you need to make the centralized Internet go down."

It however never explains what makes Bitters decentralized. Any insights?

Poor title. It's just a $37 tutorial on setting up a webserver etc.

not sure what's substantially different from e.g. (2011) http://shapeshed.com/creating-a-basic-site-with-node-and-exp...

I guess you're getting more hits than anticipated! :) Can't seem to load it.