I hacked up a copy of ArticleComments into posting comments just above the <comments /> (or <opinions />, too) tag, and automatically signing the comment with ~~~~ (i.e. signing with username or IP address; not asking for a name). Shoot me an email if you want it.
I also cobbled together an extension that scrapes a web page of current events, powered by a Perl script called calendar.pl. It might be a custom script, which would make the extension only useful for me, but if it's not, let me know and it's yours.
Shoot me an email at alxndr@#mediawiki.gmail.com, or look for alxndr in