I think his point was that you can't delete it even if you wanted to - Google's Cache is fast, and there are other caching/archival services too. They'd have b

I think his point was that you can't delete it even if you wanted to - Google's Cache is fast, and there are other caching/archival services too. They'd have been much better off plastering a huge notice on top of the old post and then linking to the new one.