The BBC understands that Buzz was only tested internally and bypassed more extensive trials with external testers - used for many other Google services.
Google said that it was now working "extremely hard" to fix the problems.
"We've been testing Buzz internally at Google for a while," Todd Jackson, Buzz product manager, told the BBC. "Of course, getting feedback from 20,000 Googlers isn't quite the same as letting Gmail users play with Buzz in the wild."
In yesterday's post, I speculated Google Buzz was only tested by its own engineers. Today, Google admitted to the BBC that was true.
Jackson told BBC News that the decision to create these automatic lists was borne out of the idea that Google "wanted to provide a great user experience straight out of the box".
Well, not quite. Google focused on providing a great Google employee experience straight out of the box. The article reports even when Google does "user testing", it uses "a network of friends and family of Google employees". That sounds like a privileged class, not everyday users.
Google needs to refocus its core products for the real users making up its market share, before insular thinking damages Search audience driven revenue.