Some of us enjoy reading and writing like this. Writing especially in non-expository formats is more than just communicating the thesis of an article. Background and personal touch are often entertaining.
Take your comment for example. Your comment's thesis is the last sentence "Summary: read paragraphs 8 and the last, 9", but delaying that to the end yields a different effect for the reader than if you began with the thesis and then supplied examples.
Take your comment for example. Your comment's thesis is the last sentence "Summary: read paragraphs 8 and the last, 9", but delaying that to the end yields a different effect for the reader than if you began with the thesis and then supplied examples.