I very quickly gave up reading the comments on the guardian web site. Many, even a majority, are insulting and regurgitated opinions by people unopen to changin

I very quickly gave up reading the comments on the guardian web site. Many, even a majority, are insulting and regurgitated opinions by people unopen to changing their mind, they simply want to shout their (often unappetising) opinion at you. HN on the contrary is populated by people (like myself, I hope) who wish to learn. They engage in discussion in order to improve themselves, not to win arguments. 4 hours is far too long BTW. I'm sure there must be better things you can do.