I just added two things:1) error messages, which are code intensive but a HUGE payoff in productivity (and thus marketing)
and 2) Opposite attributes, which are trivial to implement but painful to get merged.
I think dconf is a good opportunity for you guys to get things like #2 actually merged. No more waiting for months for a review, discuss it right there and have an in-person decision to go or not go. Merge immediately without additional delay.