Budapest 2016 issue leftovers are not considered in long-term planning
When grooming https://lab.allmende.io/degrowth/scriptorium/issues we find that many issues can be useful for the %Long-term stability of the conference platform milestone. Moving some of them in there, or closing, would also allow us to close legacy milestones on https://lab.allmende.io/degrowth/scriptorium/milestones and focus on the current ones.