yup, I have had the same experience, so much so that I stopped commenting and posting entirely. Waste of time. There are so many people on there that just seem to be outright trolling, posting outright non-sense, and doing other stuff that is just an outright nuisance. It significantly reduces the user experience.

Since HN mainly has startup-minded people on here, I think this actually opens up opportunities for new startups to enter the social media space. There is definitely a large audience who is looking for a more "professional" version of twitter so to speak. Start by blocking anonymous accounts/aliases since this is what every troll hides behind.