Board Thread:Questions and Answers/@comment-31576424-20161025024458/@comment-28606847-20161025025422

Forum edits are thread edits, like this one.

Mainspace edits are edits to articles, as John said above.

Please note that even if some users do fit all of the criteria for a staff position, they still may not receive it as admins look to see if the user is mature enough, as well as if the wiki needs more staff at the moment.