Wow, lot of interesting thoughts in this article :)
I'm new here (this is actually my very first post), so maybe I can bring a "not yet passionate" light on this.
Before getting to the AI stuff, I would like to give a warning about the idea of curating bots, as you describe them at the very start of the article. It seems to me that making them following successful authors makes them create a bias toward the person rather than the content. We all have our downs and our ups. Wouldn't such a bet on the person makes occasionally poor content from a successful author being praised, and occasionally great content from an average author be ignored? This is something humans do too, but at least they may think twice before upvoting something of a lesser quality than usual.
Regarding AIs, I like your idea of "if it's made by humans, then it's human". And indeed, fear and xenophobia are the biggest destroyer of human kind. We are creative, we should create. The usual objection to recognizing AIs as humans is: "being human is about DNA". Here is a simple question to go pass that: if you could upload your mind to a robot to cheat death, would you be a human? "No" is an acceptable answer, but if you answer "yes", then being human is not about DNA.
We have thousands of years of accumulating laws and thoughts about how it's acceptable for a human to behave in a human society. If any other form of intelligence is following those rules, should we not recognize it as a good citizen? Reversibly, if it does not, should we not apply the usual retribution defined by law?
This works exactly the same for a forum bot (which is not yet exactly an AI, but a software with all behavioral answers coded in). When you see a bot interacting, would you have accepted the same interaction from a human? This is, I think, how posts from bots should be treated. A human posting exactly the same sentences over and over with a few words change probably would be thought of as annoying. Bot developer has to make sure this does not happen. But then, is the bot producing value content?