Interesting when considering how plone is designed
What I've noticed we tend to do is ask ourselves what features we want, at open gardens and other such forums. The post says that even asking actual end users what they want is often not useful and can result in a UX that needs to be changed a lot when user testing happens. In our case, us, core developers/power users/integrators aren't the typical users of plone or rather we only one kind of user, where Plone is a complex product that has to suit both editors and integrators. I'm not sure how many core developers consider themselves integrators. So asking "us", for user research and roadmaps doesn't seem like a good idea.