I do like the idea of the "discuss this post on Hacker News" links you see sometimes. Because some articles are worth discussing, but usually not on some rando

I do like the idea of the "discuss this post on Hacker News" links you see sometimes. Because some articles are worth discussing, but usually not on some random blog - the point is the audience wants to discuss the article with each other. A blog's audience can be huge or tiny and there is no way to know if the effort of posting a comment is going to be worth it unless you are quite familiar with the blog already, and commenting on a remote site allows you to much more effectively monitor responses and engage with a familiar audience.