I've gradually gotten suckered into more or less maintaining MetaWikiPedia:MediaWiki, but I cut my wiki development teeth adding SupportForUtf8 to the version of UseModWiki we then had running on the EsperantoWikipedia?.
This support code has since gone into a couple other eo wikis; if I ever get around to it, I hope to make a clean patch against the current UseMod code. I hereby dub it UsModo. ;)
Hi Brion! -- Tarquin