That would create a different forum. HN is an experiment in how long this kind of forum can ward off gravitational collapse. There are things fundamentally wrong with these kinds of forums, but that's true of every kind of forum.
Not to pile on what tptacek has already nicely said, but I agree and still think there is plenty of room for new forums. The vast majority of possible permutations have not been tried yet, and I wish more people would.
