How many of those works actually hit the front page of HN? How many do you hear of? The reason it is little to none is because peer review happens. If someone posted that to HN it would likely be trashed very quickly and fail to make it to the front page. That's peer review in action. Now does shit get through sometimes? Yeah. But I'm not convinced this is at a meaningfully higher rate than any top tier journal or conference, if at all.