Leveraging the network itself to combat abuse is one of the most scalable methods of fighting bad actors. As the network gets larger over time, there are more users who can moderate, and will do so without cost. By giving users the ability to report spam, flag malicious accounts, block bad content, and so on, it not only creates ways for users to customize their own experience but also provides the data that can be used to moderate in other ways. One of the simplest ways to do this is simply to allow users to upvote, downvote, and flag content.
