A more exacting question would be why does the Roman Catholic church continue to maintain priests, nuns and bishops secretly in (formerly?) Red China? Care to post a picture of one of those?
I knew someone would jump at it!
You have to read the entire sequence of posts to know why the picture was posted. It was not, as you’ve mistaken, to point out that the Church is free in China. It was meant to indicate that the Communists are not absolute Atheists like the original article, and some of the commenters, paint them to be. They use religion when it fits them. Not unlike the ones who were responsible for the Inquisition.
Again, read the whole sequence of comments.