BetaNews posted an article in the wake of the announcement made by Microsoft of about transitioning all its Windows Live Spaces users to WordPress.com platform. An internal e-mail messages exchanged between (yet unnamed) Microsoft employees suggest far lower numbers: "The net is: 300k sites are expected to migrate of the 30M "blogs" — most are dead. WordPress is adding somewhere in the order of zero servers to handle this capacity. This was a "who has the best online service for blogging for our customers' and had nothing to do with technology."
Ouch – so basically most of the 30 million so-called active blogs are in reality dead, and Microsoft expects a mere 300,000 sites to effectively migrate to WordPress.com. Microsoft's PR agency responded to leaked emails, suggesting "30 million active users on Live Spaces" actually included both authors and visitors. It clarified further, saying the real number of active authors is closer to 7 million.
Automattic also commented, "while the company doesn't have an exact estimate for how many Spaces bloggers will move over to WordPress.com in the next 6 months, it has seen close to close to 50,000 migrations in the first 48 hours, which it deems "very promising"."
In a comment on this Guardian article, Paul Kim, VP of User Growth at Automattic, adds that "if there're only 300,000 actual active blogs (1% of 30 million), we'll be able to determine that very soon".