Sentimently auto-hides comments but doesn't auto-delete. Hiding a comment on Facebook™ means the author and his or her friends can still see it. This prevents further outrage and the feeling of censorship, while limiting the public visibility of harmful comments. 

Hiding is a reversable action, meaning comments can still be made publicly visible again. You can manually delete comments that were hidden by Sentimently from within the dashboard. And you can also use our auto-ban feature to automatically ban users when you manually delete any of their (automatically hidden) comments.