Some popular public WeChat accounts were shut down on the night of March 13, 2014 without forewarning. Most of these accounts became a popular venue for discussing politics during the past few months since the big crackdown on Weibo  last year.
These deleted accounts include highest profile WeChat account by legal scholar Xu Xin and self-media like True Words Channel (Zhenhua pindao). Visitors attempting to access those accounts receive a message that the given account “has been repeatedly reported,” and upon investigation has been shown to be “in violation of the rules, and all of its functions have been deleted.” The message advises users to stop following the accounts. TeaLeafNation  has more details.