Hi,
Most ideas behind "Onboarding new Wikipedians" [1] are perfectly applicable to mediawiki.org and our problem onboarding new potential contributors.
Do you think the new Account creation UX, GettingStarted and GuidedTours could help us here? If so, let's talk.
http://www.mediawiki.org/wiki/Project:New_contributors is the evolution of the "Wikitech contributors" proposal discussed in the past days. A big change in the proposal is the aim to become a dedicated early adopter of EE's new features instead of trying to find temporary shortcuts for the roadmapped/missing features. Feedback and volunters welcome!
For instance, we could start with the new ACUX. http://www.mediawiki.org/wiki/Talk:Account_creation_user_experience#ACUX_for...
[1] http://www.mediawiki.org/wiki/Onboarding_new_Wikipedians