Very good analysis on curation rewards and a symbiotic relationship between authors and curators to the benefit of both.
Somehow I couldn't make "Next Vote" to work, it's hanging at "Loading...". I also don't self-upvote my posts at least for a few hours, leaving time to potential curators to upvote before that. But haven't thought of bid bots as a way to boost curation rewards until now. May be an interesting use case and a way to attract more curators.
Yes, neither do I lately. Might be that Juliàn has stopped maintaining it. I found it was pretty fun to use when it worked.