Thread:ADour/@comment-33143709-20161005000910/@comment-4651179-20161005005915

I don't really know how, considering I joined this Wiki five years ago, when it was already one of the biggest.

However, I guess wikis just gain editors naturally. If the topic they cover has enough fans, they will eventually set their sights on either creating a wiki or contributing to an existing wiki. And almost everything has a wiki.

As an alternative you can use other communities that revolve around the wiki's topic and promote it. Either subtly or... not.