Why does Candelabra exist? - sanctuarycomputer/candelabra GitHub Wiki

There are plenty of auditing tools that will give you a detailed report for a single URL. This has helped, but it has remained difficult to be truly comprehensive. We believe that it should be simple and require little technical know-how to understand precisely how accessible a website actually is.

As for why you should care about any of this, Deque Labs said it best:

The web can only become an accessible, inclusive space if developers are empowered to take responsibility for accessibility testing and accessible coding practices.

Because you can point Candelabra at anything, we're hoping that it encourages a climate of accountability.