I was commenting on a thread link-1, discussion about feature in shadowbot and really considered letting you know about the @shadowbot team work - their interface might do well with a touch of your filter as I mentioned in my comment under that thread.

Then a few hours later, my comment was upvoted by @thing-2 a 'relative' of @gentlebot

Both these bots upvote only comments which have passed some sort of algorithm checking for 'quality' - the process is discussed in summary at link 2. It apppears to be an implementation of a sort of AI - an algorithm like the one you are planning. If there is a chance, perhaps you can look into my two links.