Since then I upgraded my account to the basic plan which disables ads. There's a nearly hidden pricing option that allows you to enable it for free on sites tha

Since then I upgraded my account to the basic plan which disables ads. There's a nearly hidden pricing option that allows you to enable it for free on sites that get less than 50,000 daily page views and are non-commercial. A disqus engineer recommended I do that on Twitter. Thanks for all of the links. I will check them out. Good luck with your comment service.