Earlier quoted context omitted.
I didn't vote on that post, but it says that physical violence against a child can work. > I think when it comes down to basic physical means we have failed as people. It can work. Does sometimes. But there are costs, scars. Not physical ones so much.
You're probably right. It's pretty childish to upvote/downvote a comment because you have the same/different opinion rather than based on the value it adds to the conversation.
And you misunderstand the voting culture on HN.