I don't care so much about Digg, but the endless "haha, I caught you!" comments annoy me more than the rare actual AI-written content they label.
I have to strongly disagree with you on this. It behooves us (as a species) not to degrade our own manner of speaking and writing simply because of a (possibly temporary) technical anomaly.
In my view, it would be really, really sad to lose expressive punctuation or ways of constructing sentences simply because they're overused by AI.
I, for one, won't be a part of that, and I hope you won't, either.
If they wanted to keep it to a single sentence, they could have used a a word like "rather" to act as a separator between moat and wall.