The thing is, the blog format is a pretty lightweight format. It works for a large variety of purposes. More to the point, it works well as a searchable archive

The thing is, the blog format is a pretty lightweight format. It works for a large variety of purposes. More to the point, it works well as a searchable archive of essays. I agree that a ordering that de-emphasized time would be preferable, but it would either be replaced with wiki-walking or cumbersome index pages (and how would those be sorted? Recency is still a good ordering there.)