Those are nerd only solutions. If anything will have mass market appeal and actually catch on with experts that are not nerds, it can't be nerd only.
WordPress is still around, and I recommend it. It's more "social" than ever in some ways, and the built-in comments are looking better and better as the years go by. (I use Disqus to moderate the comments for more than a dozen blogs in one network, but for an individual blog, I prefer the native WP comments.)