senior editors and baseline quality
Indeed, the idea is not to keep such a project as an elite club, but more as a driving force. A simple example: today as an admin I had to make a decision on an article about a computer game. I have myself no idea about the computer games. The deletion review was not active, only the author of the article voted (obviously, against deletion). What I did I went to the computer games project, asked their opinion, and eventually deleted the article. That was my responsibility, but eventually their expertise.