Hmmm, no offense, but were hypronix and memorY the only ones to really read that article? It doesn't mean that you should like Google any less, or it's "something you should use while it's still available" or anything like that..

The basic point was that this really isn't a hole in google, but a means that people are using google to find holes in webservers or web apps... and because of google's cache (not to mention many others out there), it enables hackers to find information that's no longer accessible on the site (perhaps being long-since patched, removed, etc) but perhaps still pertinent to the security of the site... hell, it even enables people to easily find things buried within the comments on a page but perhaps not clearly displayed in the browser -- search engines can be a very powerful tool (somewhat evident by the large number of "just use google" posts along with the many tutorials on the very same subject). And, of course, with anything so useful, they're often employed for both good and bad purposes...

So, this really isn't "something for Google to fix" (as there are many legitimate reasons for people to post things that might look very similar to "useful information" (as we used to call it) but not really have it fall under this sort of category). It's just one thing that any decent "hacker" does while enumerating a site, anyway, if you ask me...

Just my $0.02...