JK Rowling turns 52 on July 31st, but she?s not dialing back her sass anytime soon. SF Gate reports since Rowling opened her Twitter account in 2009, the Internet has been privy to the wit, charm, and ? most of all ? snark that made ?Harry Potter? one of the best-selling series of all time. From Donald Trump to Piers Morgan to anonymous Internet trolls, Rowling rarely holds back when something gets her attention.