How dairy robots are changing work for cows and farmers

Why is this comment offtopic? It literally asks why would a business want to invest in the system described by the article. That is as on-topic as it gets. Plus it got really good responses which taught me interesting facts about diary management, and cattle welfare.

I hear you, but the reason it seemed offtopic is that it spawned a large subthread about animal welfare/ethics vs economics/profit, which, whilst important, is separate from the topic of the main article. So then this tangential subthread took up a lot of space near the top of the main comment thread.

And the way the root comment began: "why would a dairy care about the cow's quality of life?" seemed cynical and inflammatory; I'd hope HN readers would be mature enough to already understand that dairy cows’ quality of life matters both for ethical and economic reasons.

Anyway, I’ve left the subthread detached and downweighted but un-collapsed it. That way it's easy to find for people interested in that aspect of the topic, but doesn’t dominate the top of the thread.