It can handle content block, but that is just a small piece of the pie.

> I think I am not fully understanding the use case yet.

Even after playing with it a long time myself, I am still surprised by the creative use cases people come up with! The biggest pause for many users we've seen so far is "This is awesome, but I don't know what to use it for"

The main post text above has some varied examples. The space of possibilities is somewhere between anything a Tampermonkey script can do and anything a standalone chrome extension can do. We plan to keep developing and sharing useful example scripts and we hope as we get more users, they can share their scripts as well to create a community dynamic that makes it easier to get started.