Board Thread:Support Requests - Getting Started/@comment-33191559-20170206132824/@comment-27345308-20170206213325

Tupka is kind of taking it to the extreme level, but he got the biggest part of it right. Promoting users on "first come first serve" basis is a very bad idea and that has been proven too many times to count. Besides, promoting a single user to a bureaucrat won't make your wiki active enough.

If you really want new contributors, your wiki needs to have a topic many people are interested in. Creating a duplicate wiki isn't disallowed, but isn't encouraged either because the one established later will have less contributors (in most cases). You could also read this or the page Tupka linked.