I will repeat myself once more. "to have a repository where developers can upload their work for everyone to use" is extras-devel. Devs upload, and whoever wants to, uses, no guarantees or strings attached. If it burns your house down, too bad. Extras is "to have a repository where end-users can download reasonably functional/safe software from. It doesn’t mean of course that it is foolprof (even commercial QA isn’t that), but it means at least someone bothered to install it and see what it does.