Censorship in China the new Internet regulations passed under General Secretary Xi Jinping's administration. These arrests served as an example to the rest of the "Big V's" as well as other Chinese internet users to be careful of what they expressed online; in fact, even five months after these arrests in August, there was a noticeable decrease in the amount of posts and discussions from prominent online figures. On popular microblogging site Weibo, opinion leaders decreased their posts by around 40% from the previous year. By 2015, instances of censored posts from popular Weibo accounts included messages that were only mildly critical of
Sina Weibo Sina Weibo. Posts on politically sensitive topics are deleted after manual checking. Sina Weibo is believed to employ a distributed, heterogeneous strategy for censorship that has a great amount of defense-in-depth, which ranges from keyword list filtering to individual user monitoring. Nearly 30% of the total deletion events occur within 5–30 minutes, and nearly 90% of the deletions happen within the first 24 hours. On 9 March 2010, the posts by Chinese artist and activist Ai Weiwei at Sina Weibo to appeal for information on 2008 Sichuan earthquake going public were deleted and his account was closed by website's administrator.