(Imagine trying to find all of Robin Hanson's writing on construal level theory- yes, you can use the nearfar tag on Overcoming Bias, but that's sorted by date, and there's no solid introduction.)

That's a good example of how weak date markers are: if the dates were deleted completely from every OB post, people would still find them incomprehensible because there's only one post which could be considered an overview of the concept, and is a needle in the haystack until and unless Hanson in some way synthesizes all his scattershot posts and allusions into a single Near-Far page.

The posts need some sort of organization imposed; the lack of that organization is what kills them, not some date markers. If my essays were broken up into 500-word chunks, and sorted either randomly or by date, they wouldn't look much better.