I often feel like writing comments is pointless and contributes to the sea of noise below top level posts, which I none the less often feel compelled to read. B

I often feel like writing comments is pointless and contributes to the sea of noise below top level posts, which I none the less often feel compelled to read. But what is a comment box but not an invitation to perform a free form exercise? If I read a whole blog post and don't have anything to say about it, what was the point?