From The Register
“On Sunday Google admitted to the Washington Post that it was working on a bug it had found which was withholding thousands of legitimate search results from its users. The bug was in response to another bug: Google’s susceptibility to being gamed by spammers who set up ‘link farms’ to tripwire its PageRank%u2122 algorithm. “Is Google starting to show signs of strain against spammers and Web scammers?”, asked the Post.”
So Google is getting more and more unreliable???
Not necessarily. They acknowledge the bug and start working on it, After they are close to solving it, they disclose the information to the press, thus keeping an open air about them, and at the same time increasing their good will: People start to acknowledge Google with reliability. They win, the users win.