I'm not aware of anything in the HN guidelines stating that matters that have been discussed before, opinion or not, should not be posted or are not worthy of f

I'm not aware of anything in the HN guidelines stating that matters that have been discussed before, opinion or not, should not be posted or are not worthy of further attention or discussion? If it's not interesting to people it'll probably never make is out of newest. By now it's on the front page, that should tell you something about the interest HN has in this topic.