Hmm, some interesting questions floating around
Let's start with the basic one: we know that certain tribes are not terribly good with the whole sarcasm/irony thing, so how can we expect an AI to do better? Next, are we aiming at 100%, or do we deem it acceptable that 20% will be misclassified? And who will do the tuning of the misses, or is that where the humans come in again? (in that case, forget it, the volume merchants are exactly in this game to exorcise the humans from the chain because they get too much in the way of profit).
I'm not terribly confident this will deliver, but it's interesting to see them try. I still think that AI is no match for HB (Human Boneheadedness).