Zhou Tong is a scammer. Scamming millions worth of BTC with Bitcoinica wasn't enough - he is back with his latest "venture", CoinJar.
My account has been deleted and I have lost the Bitcoins I have been placed on there. I am 100% sure I entered the email and password correctly (I use a password manager), and resetting passwords do not work.
DO NOT TRUST COINJAR. THEY SELECTIVELY DELETE ACCOUNTS AND IGNORE YOU.