A redesign does not have to be ambitious. There are so many things that can be incrementally improved in HN you'll be busy without ever touching the core of the

A redesign does not have to be ambitious. There are so many things that can be incrementally improved in HN you'll be busy without ever touching the core of the UI like Reddit did. The bar is literally on the floor. A reason those HN readers look like entire rewrites (besides being rewrites) is because they are not dangerous rollouts, and because they have to provide strong reasons to use them as third party sites over the "real" HN.