MediaWiki Templates: Turing Complete?
These things are insane and MediaWiki is totally getting out of hand. At this point, a limited sub-set of HTML with some sort of scripting/template language would have been preferable. And the documentation for the templates is terrible.
Here's an example template:
WTF? This code looks like brainfuck. And that's a simple one.
Here's the template that produces the company infobox. Look at that source code!
But I guess mainly I'm just bitter because I can't get conditionals working.