Just a note, I'm probably up for helping out with your wiki tech setup at some point if there's someone active and friendly with FTP access. Just some useful config tweaks and extension suggestions, though if I had access (FTP to a subfolder with a blank install would do) I'd be up for trying to set up a user bridge/SSO with the forum which would also entirely solve the spambot problem. Fixing and making wikis is kinda my hobby, and it's sad to see wikis struggling with spam.