Email hacks, shadowing, petitions, placards and curses are being aimed at the organizers of Hong Kong's 'umbrella movement,' which ended months ago. The bullying tactics increasingly look like those faced by activists on the mainland.
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For a year and a half, the Yale-educated sociologist has received dozens of hate letters, including death threats, with many of them cursing him as a traitor for helping found the Occupy Central civil disobedience movement that partly shut down Hong Kong last fall.

Shortly before the 79-day movement started in late September, Chan noticed someone standing guard on 24-hour shifts opposite the entrance of his housing compound. Banners denouncing him have been hung across from his home. In an interview, he described a car following him that pulled over when he did; he has seen strangers deliberately taking pictures of he and his daughter.
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The boisterous Occupy movement aimed to allow Hong Kongers to freely elect their political leader by 2017, as China has promised. Yet Beijing saw the move as rebellious. Occupy activists oppose China’s requirement that candidates for Hong Kong's top job must be vetted by a nominating committee of Beijing allies before running for office. Beijing, for its part, is wary of calls here for full democracy that could unleash similar demands across China.

http://www.csmonitor.com/World/Asia-Pacific/2015/0218/Hong-Kong-s-Occupy-leaders-now-face-quiet-but-persistent-harassment