When your code is nearly old enough to vote

My talk at this year's linux.conf.au was "When Your Codebase Is Nearly Old Enough To Vote": a case study of Dreamwidth and all the horrible horrible things we've found down there underneath the couch cushions, along with the lessons we've learned about when to rewrite them and when to leave them alone.

You can view the YouTube recording (sorry, no transcript), or check out the slides!