[drdaeman]

Both. Developers are end-users as well, and an ability to self-host (and protocol standardization and availability of alternate implementations) matters to non-developer end-users too, even though they don't ask for it.

Openness is in the same boah as privacy. Average user would buy just a "we pinky swear it respect your privacy" sticker on the product, but we know they want real privacy. Same with openness. And Firefox Account & friends is not an open system, it just happens to be partially documented and have a few FLOSS implementations of varying quality.

Kinto is a step in the right direction, though.