We’ve long been concerned about just how many of the 250 million users of Sina Weibo are real, and not spam or zombie accounts. Now a report from the HP Labs ‘Social Computing Research Group’ claims to have found that an astonishing 49 percent of all retweets on the microblogging service come from fraudulent accounts. To make it worse, those automated fake users account for about 32 percent of the total tweets.

via Report: Half of All Retweets on Sina Weibo are Spam | Tech in Asia.