You’re not wrong; that is the blog’s style. I enjoy the format for exposing me to a cross-section of opinions from across the internet, on topics I find interesting, with very little work on my part. That’s probably more an indictment on Twitter’s product stagnation than a shower of praise on this blog and it’s author.
Additionally, it's not always just Twitter: it can be news, or something from another blog as well.
Yes. It's more or less a "link blog" with some commentary and always has been.