There's even a Tumblr for this.
The reality, however, is that Bootstrap is incredibly popular for good reason. It's responsive out-of-the-box, is delivered via other people's CDNs (for which I thank you :) ) and provides a relatively familiar UI paradigm.
In keeping with the "minimum viable product" theme, Bootstrap allows for very quick... err... bootstrapping of a pleasant, clean, simple web application with the minimum of fuss.
This is just a quick post to get the "Yet another Bootstrap site?" question out of the way. In the next post in this series I'll look in a bit more detail at NancyFX and some sneaky tricks to make it refactoring-friendly.