I've been wondering: is there any benefit in actually getting oldwikisource
moved to the "mul" language subdomain? Also, how hard would this be?
Would it be more effort than is worth making (or worth requesting that
someone else makes, anyway)?
To explain why bother:
As it stands, oldwikisource is almost invisible. It can't be linked via
interwiki and it is not, as far as I can tell, supported by Wikidata (this
was partly prompted by trying to get its author pages linked up properly).
Lots of people don't even realise it's there. Oldwikisource gets almost
no traffic or attention.
"Mul" is the correct ISO-639 code for "Multiple languages", just like "en"
means "English", "fr" means "French" and so on. Several people already
refer to the project with the shorthard "mul.ws". (For the record, the
other official no-specific-language language-codes are "mis" for uncoded
languages and "und" for undetermined).
I know there is a bugziilla request (52971) to catch interwiki links to
unused subdomains and redirect them to either the incubator,
betawikiversity or oldwikisource. That might solve some of this, but not
the following:
There have been some objections to hosting a bilingual book on English
Wikisource and the same may hold elsewhere. Mul.ws could operate as more
than just an incubator; it could be the primary project for works like
this. It would also leave the subdomain-less page as a language portal,
like most of the other projects, and let mul.ws have a proper main page
(presumably linking to all of its other main pages but still a viable page
in its own right).
However, I don't know if this is really a good idea, if it would have any
support, or if it would be too difficult to be worth doing.