China's government and economic system provides considerable advantages for large, domestic companies operating in the country, but the potential for state interference also creates substantial uncertainty and risk. Weibo came up against that reality and a potentially significant road block to its growth story on June 22, when China issued a shutdown notice for the company's video and audio live-streaming services. Most of Weibo's other video and audio content is hosted by a third-party provider, so it's still not clear what effects this will have on Weibo's business over the long term, but it's an issue that shareholders should keep a close eye on.