The difference is email is not centrally controlled. There is no way to "censor" it the way you would a platform you control. The function of email is to deli

The difference is email is not centrally controlled. There is no way to "censor" it the way you would a platform you control. The function of email is to deliver messages and there isn't a good way to prevent abuse, hence spam filters, which in some cases acts identically to censorship.