I'm getting an error whenever I try to make an edit. It looks like you installed a captcha to deal with the spam, but didn't hook it up quite right so you just get an internal error whenever you try to make edits.
That said, it has succeeded in keeping spam off the wiki
Q) What is the name of the dwarf fighter on the Desktop Dungeons splash page?
Easy for humans, that just need to go to the DD splash page to figure out the answer, but a machine wouldn't be able to figure it out (at least no program on the complexity level of a spam-bot).