People on Hacker News, by and large, don't seem to grasp the concept of using Twitter for things other than having debates/arguments. The criticisms of it here typically boil down to it not being a good platform for discussion, when in reality, that's just not the point of Twitter!

Most people are using Twitter for the memes, the (often educational) content, the news, and direct messaging. The average person is probably not there to look for people to have a long form discussion with, especially if that person is a stranger who is trying to argue with them.