The action of concealing a user-generated post on the Facebook platform involves making a comment invisible to everyone except the commenter and their Facebook friends. While the comment remains present on the platform, it is no longer publicly visible on the original post. This contrasts with deleting a comment, which completely removes it from Facebook’s servers.
This feature provides content creators and page administrators with a moderation tool that is less drastic than outright removal. It allows them to manage the tone and content of the discussion on their posts without silencing users entirely or potentially inciting further negative reactions that can arise from deleting content. This can be particularly useful for comments that are off-topic, slightly inappropriate, or that could otherwise detract from the overall quality of the conversation.