My general feeling is that a lot of content on HN, Reddit, etc. is superfluous and non-value adding. Things like buzzy blog posts, sensational headlines, etc. B

My general feeling is that a lot of content on HN, Reddit, etc. is superfluous and non-value adding. Things like buzzy blog posts, sensational headlines, etc. Believe it or not, lots of PR firms and businesses use HN as a way to promote their features. On a walled garden (as much as my gut reaction is to dislike it) you don't have that issue. There are other scenarios too, I'd imagine you can come up with as well.