How to Configure Profanity and Moderation Settings on Your Facebook Page
A common concern that many Facebook Page managers have is dealing with disrespectful or hateful commenters. The fact that all Facebook Pages are public and any Facebook user can comment on your Page makes dealing with this problem even more difficult.
Fortunately, all Facebook Pages have two features that automatically block offensive language and profanity on your Page:
Profanity Filter: Within the General section of your Page Settings, this option blocks profanity based on your preference. You can set it to Off, Medium, or Strong.
Page Moderation: This option is also located in the General section of your Page Settings. Simply list terms that aren’t profanity but are still offensive to your specific community. The word retard, for example, would be offensive to an organization that deals with developmentally delayed adults but completely acceptable in a discussion of classical music, in which the term instructs a player to slow down.
If things get out of hand, you can delete comments posted by Facebook users and even ban users if they cross the line:
Deleting comments: As Page manager, you have the option to delete any comment you want. Simply click the X to the right of a comment, click Delete, and select Delete in the pop-up window.
Banning users: Some Facebook users may continue to badger your Page even after you delete their comment. In this case, you can ban such a user by clicking the X to the right of a comment, clicking Delete, and selecting Delete and Ban User in the pop-up window.