How to hide comments on Facebook will be explained in a well-simplified form here. Hiding of comments occurs for different reasons. Maybe the commenter must have written an abusive comment on your page which you may have found awful. Another reason could be that he may have wanted to purposely discredit what the post you posted is talking about, whatever the reason could be, we will show you how it’s done.
How to hide comments on Facebook
Hover your mouse around the comment you want to hide.
Three dots will appear by the right side of the comment click on it.
Delete, Hide and Report comment appears, select Hide.
Remember when you hide a comment, the comment will still be visible to the person who made the comment and his friends.