I think this is a hold-out from old-school blogging, where each post would have a url that was often an external link. Feeds often reinforced this, favouring the external link over the 'blog post permalink' (I guess since, who would care about that when they already have the full text content?).
On the site's home page, the posts include a "" link which points to the post itself. I'm guessing the reason the posts don't link to themselves is another hold-out from the old-school: a page linking to itself was typically considered bad practice.
On the site's home page, the posts include a "" link which points to the post itself. I'm guessing the reason the posts don't link to themselves is another hold-out from the old-school: a page linking to itself was typically considered bad practice.