Firstly, I'm disappointed Erik chose to characterise my stated motivation as "false pretenses", as if I had some kind of bias towards Klingon and I deliberately tried to mislead the list. I mistakenly created Klingon, I did not try to pull a swiftie on the Wikimedia community. I hope that Erik's choice of words was in error.
Jimbo issued one statement against Klingon and one statement in favour of Klingon. His opinion was thus sufficiently ambiguous that my pretext was removed. However he later clarified his position by withdrawing his initial statement -- both on wikitech-l and on #wikipedia. I would have been happy to re-enable the wiki as soon as he did this, however he asked me to wait for the discussion to pan out.
The compromise agreed to by Erik and Timwi is to allow the Klingon Wikipedia, but to avoid interlanguage links. Accordingly, I have commented out the Klingon entry in $wgLanguageNames. This means that markup of the form [[tlh:wIqIpe'DIya]] will create an external link rather than an interlanguage link, just like links to meta or sep11. Otherwise the wiki is fully functional.
http://tlh.wikipedia.org/wiki/Main_Page
-- Tim Starling