On Chinese social media there are different views on what an alleged Taiwan visit by Nancy Pelosi might mean for China, the US, and Sino-American relations. But whether she might actually visit Taiwan or not, virtually nobody seems to be looking at the latest developments with rose-colored glasses. She is called ‘the American Old Lady’ or ‘Old Witch’ on Chinese social media. Nancy Pelosi, or Pèiluòx? (???), is all the talk on Weibo this week since reports came out that the US House Speaker is planning a visit to Taiwan. It is the second time this year a potential Pelosi…