https://en.wikipedia.org/wiki/Weak_AI It is by that definition.

I still don't think so. "AI" is a very fuzzy term (the meaning of which changes with time, too) but in this case what you have is a fairly plain-vanilla classifier which I see no reason to anoint with the "intelligence" title.

do you think this issue (karma problems) merits a top-level discussion post?

Karma has been extensively (and fruitlessly) talked about here. If you want to write a top-level post about your proposals, it might be a good idea to acquaint yourself with the previous discussions here (as well as the experience of other forums, from Slashdot to Reddit).