Mediawiki has a number of humorous bug reports, though not as many as I’d like. Still, they’re quite funny.

I think my favorites are the request for RESOLVED MURDERED, the real reason why MediaWiki runs on MySQL, someone asking where the community consensus is to stop Volcanoes exploding, offers of shamanic help, a ground breaking report on US Government corruption, and a warning about zoning laws required for shipping Ponies,