Brion-
Anti-Klingonists, which would you prefer, given these two options: a Klingon-language encyclopedia in a side project that you never have to see or hear about, or neverending fighting *about* one from people who just won't shut up about it?
A side project with its own domain name for conlangs and dead languages seems like a good idea. It may be possible to work with the people from the Unilang wiki on this: http://www.unilang2.org/main/wiki/wiki.phtml (Unilang also uses MediaWiki.)
I remain somewhat concerned about using foundation resources to promote a few people's pet projects. This isn't even for Jimmy alone to decide as much of Wikimedia's current resources come from outside donations. Perhaps this question should be put to a Wikimedia-wide vote.
The argument can of course be made that since Klingon, Toki Pona, Modern Egyptian et al. have practically no speakers, they aren't at risk of consuming significant resources. However, I believe that every Wikimedia or Wikipedia project should at least have the *potential* to become large and useful to thousands of people. If that potential doesn't exist, then the question may be raised why we should do it at all.
"EnlargeSpace"? People like "Prince of Egypt" strike me as not quite dissimilar to the micronation crowd, and I'm not sure it's a good idea for us to go to great lengths to attract more of them.
Regards,
Erik