User blog comment:Dopp/Technical Update: May 17, 2011/@comment-5926766-20110518063610/@comment-1656630-20110518160356

i'm haven't seen the system in action yet, but i'm pretty sure it won't just be a button that spams everyone every time you push it. ;)

users will be able to propose themselves (or accept the offer) as long as they meet the criteria. part of the criteria includes that you haven't adopted any other wikis recently, which should prevent against wiki-hoarding.

also worth noting: this system won't be in play on large, very active wikis. it's primarily for smaller ones, with an emphasis on helping active contributors who already care about the wiki keep it healthy.