I have a feeling this thread has a strong bias from highly automated valley life. In more provincial regions and even just much of Europe lots of forms have to be filled out and printed.

It is not something you have to everyday or something, but the existing solutions suck massively. You either have to use Adobe, which requires Windows (or Mac, I suppose) and your firstborn or use some massively shady online service. So personally, I love this feature!

(And I also do not think that this will halt all other development at Mozilla like some comments here imply)