> Or, they can go after the same original sources you have cited and write their own summarizing article (but not copy the blog post, and they also can't add any of their own conclusions).

That's my point: you've done the legwork, but you don't get credit for it, and as far as Wikipedia's policies are concerned, can't. They aren't supposed to cite your blog as a source, because it's self-published. I've seen many edits citing what I thought were well-researched entries get reverted because "it's a blog."