I believe we should start to enforce the Visual Novel rule more often on /a/. There are dozens of topics that are rarely met with negativity on /a/, despite pertaining to otaku culture, but not anime/manga, that aren't allowed to slide; there's no reason we should allow a topic that constituted one of the main factors for the creation of a new one solely because of reception.
It's been on the rules for a long time, and there's a specific ban request for said subject. I propose a stricter enforcement of such rule, although considering exceptions such as anime adaptations together with the Visual Novels (however, not leaving space when the discussion is solely about the VN, leaving the anime completely intact and forgotten).