People so bold! the policy or "code of conduct."
The Unitarian Universalist Association advice to bloggers puts it this way:
A code of conduct, clearly stated in advance, can set the expectation for how readers will treat you and how they will treat one another. Consider how you will respond to comments or other communications that express hatred or disrespect, or are threatening. Remember that this is your blog; you have the right (and responsibility) to remove content that you consider threatening to your own safety or to the safety of other participants.
1) I will not tolerate comments that are slanderous, express hatred, or make intemperate personal attacks on people or communities.
2) I will not tolerate comments that are posted to bring attention to commercial web sites, pornographic web sites or web sites that advocate racism, hatred toward people or communities of people.
3) I will not not write about private conversations or reveal confidences, and will discourage comments that are write about private conversations and reveal confidences. When I wish to write about a conversation, I will inform my interlocutors of that fact, and provide a draft for review when requested.

