Could you please add a link to your AUR packages? :)
https://aur.archlinux.org/packages.php?SeB=m&K=kaitocracy
I would also like to work on maintain the Arch web presence. I think that a separate login is needed for each part of the site is something that should be fixed.
Single sign-on might be a cool thing but is really hard to implement and maintain properly in practice, especially if there's a large number of independent modules that have to be integrated. Most of the projects I implemented SSO for went back to separate logins after some time, just because it was too much effort to maintain integration for all submodules.
I don't say it's impossible but it's a lot of work.
Maybe an LDAP solution? I haven't really looked at the code yet. -- Kiwis and Limes: http://kaitocracy.blogspot.com/