I think the real problem is that the posts are poorly organized. There is a very low signal to noise ratio and you have to search through many posts that don't interest you (most of which are merely uninteresting, but some of which are actively offensive), in order to find the posts that do.
IMO, a forum setup like 4chan or 2p2, that had tags but also sections and subforums would be a lot more effective than the reddit set up we have now for segregating the information in such a way as you could easily find what youre looking to read about with out being exposed to stuff you find distasteful.