The post's underlying premise is that contributions should remain forever. But why? I can have a super interesting, deep philosophical conversation with a frie

The post's underlying premise is that contributions should remain forever. But why? I can have a super interesting, deep philosophical conversation with a friend, or a 100 friends - and once everyone leaves the room, its like the conversation never took place. What's the point then? Well I benefited... Maybe I got some karma points so I feel better too. I agree with with concept of "keeping every bit of data forever" and having it be freely accessible to others. But I disagree that some forum's data retention policy should dictate when and where I share information.