User blog comment:Brandon Rhea/Why Fandom Evolves: A Look Ahead in 2017/@comment-3490570-20170111230329/@comment-20644-20170112025407

There's always going to be a handful of wikis, like the one you described, where there's less content to create and it's mostly going to be about a reader experience. So not every contribution tool is going to bring more editors to your wiki. That's to be expected.

However, a feature like Discussions can create a more active userbase for your community. Even if there's less wiki content to contribute, fans of the show who are reading your wiki would be able to talk to one another about the show. That would let your wiki engage its readers, as opposed to having them be invisible with nothing to contribute to the wiki content.