Do the same with HN and you will see the good parts of it are entirely reasonable as well.
Taken as a whole, I don't see how Twitter as a whole is reasonable. In my opinion, on average it is probably the most toxic, inane popularity contest of any social media.
That said, this is a Thanks HN post, so I don't really care to make this a whole discussion about the blue site vs the orange site.
Conversely I don't know of a single person who uses Twitter who doesn't believe it to be an absolute hellsite of inane misery.
Twitter is quite self aware, HN... not so much.