I'm reminded of a bit in The Onion, where this guys states, "a whole lot of people are saying a whole lot of stupid things on the internet, and I'm here to set them all straight."
It just becomes pointless.
Some things are clear and obvious to those with exeperience. We try to share some advice with those who are inexperienced, give them some guidance, maybe help them avoid some pitfalls. Not everyone is open to advice. They've already made up their minds, in the face of their lack of experience.
You can waste your life in pointless arguments online. Sometimes people need to be allowed to make their own mistakes for a while, before they are willing to follow good advice. Time to step back and let people do what they will.