The OP is reacting to a study that made it to the front page a few days ago that found that no amount of alcohol was safe. I suspect that they're not trying to solve a drunkenness problem, they're trying to drop a substance that more and more studies are showing has negative effects in any quantity.

EDIT: here's the link to the previous discussion as requested in a comment: https://news.ycombinator.com/item?id=30009529