BEIJING (AP) — Remember June 4, Shi Shusi asked the 1.5 million readers of his popular microblog last year. Moments later, his postings were erased. A note from the microblog operator said they were “inappropriate publicity.”

This year, a discouraged Shi hasn’t posted anything about the anniversary of the 1989 crackdown that crushed pro-democracy protests at a cost of hundreds of lives.