Answer (Playground):
There are several ways a subreddit can be manipulated. "Brigading" involves a coordinated attack by social media users on another group. In Reddit that would be a group of users looking to manipulate the conversation or voting pattern on a subreddit.
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（一）盗窃、损毁、擅自移动铁路、城市轨道交通设施、设备、机车车辆配件或者安全标志的；