That's not an argument for throwing away the ability to search old information though. It's an argument for better metadata and better easy control over the search range. I may be looking for old information.

Yes, if I'm searching on a current tech topic or to solve some computer issue I'm having, I probably don't want anything more than a year or two old. However, I frequently want to research some historical content and it can be really hard to cut through the recency bias of search engines.