It occurs to me that folks tend to post the topics they're interested in. Have you considered using one's own posts to inform the AI as to the content they'd like to see?
I particularly like the ability to filter out automated votes. While there are good reasons to use voting trails to support folks, manually cast votes have a far greater value IMHO.
Thanks!
Good point! We added a little tweak to our algorithm to account more for that, thanks :)