Censorship is a tool used to balance individual freedom with group norms of acceptability. We voluntarily censor ourselves in order to "belong" to a group we admire. We resist being censored by groups to which we have not chosen to belong but which included us nonetheless by force or by accident.
Sometimes, the hands covering your mouth and eyes are yours ...(source)
Pseudonymous, permissionless, distributed systems support applications which allow us to better resist groups which want to include us against our will.
Reputation-based, permissionless, distributed systems support applications which allow us to create or join groups we want to belong to.