It's in the nature of the technology. If you can figure out how to do it once, doing it 1000x or 1000000x isn't going to cost you that much more. Quantity is easy, quality is hard. So we've created a selection force for "business" models that benefit from the nearly free ability to scale in quantity while ignoring quality. Ie, all sorts of spamming.

One of the reasons ML worries me is because it can sprinkle just enough of something that vaguely resembles quality into the pot to take the quantity (spam) scaling to a whole new level.