June 12, 2014 (Chinavestor) Analysts have to endure frustration when it comes to looking at SINA’s financial statements. There is inconsistency in between 2012 and 2013. Such as, Sina Corp. (NASDAQ:SINA) did not record any revenue generated by Weibo until 2013 last quarter. The same information is omitted from the annual statement, and then the new annual statement structure is different compared to previous years. Nevertheless it is worth the effort because information gained is second to none. Here are some of the most important findings.