HN doesn't have a lot of that now. The ones that get through are generally things that affect a wide number of people and industries, including tech. Sometimes it is even a mixed subject - political issues that are affecting technology. Can't you simply just skip over the stories or posts you don't want to pay attention to, since it isn't that much of it?
Or if you are that motivated, build one yourself? It seems quite a bit of work just to get it started and even more work to keep it moderated in the way you want - especially if you use volunteers as moderators.
