Joey Hess joey@kitenet.net is the author of git-annex. If you need to talk about something privately, email me.
The forum is the best place to discuss git-annex.
For realtime chat, use the #git-annex
channel on irc.oftc.net.
You can also watch incoming commits there.
The VCS-home mailing list is a good mailing list for users who want to use git-annex in the context of managing their large personal files.
I welcome translations in theory, but I do not have any infrastructure in place to support it, so that would have to be the first step.
(Also, this page is not a general-purpose discussion forum.)