What about my suggestion - if you haven't read my previous letter...
What I suggest, is that in the "Log in / create an account" section would be
a drop down menu for "native language" or something like that (maybe with
the help of uselang) - so after the user creates an account, a script would
create a babel box in the user's page (something like {{user $1}} ) or he
would get a welcome message in the user talk page ( {{subst:welcome/$1}} ) -
or maybe both?
That way the user would get a welcome message that could guide him in the
Commons, and it would be easier to contact with him.
Yuval