"Notice" principle

This thread is for comments on the Notice principle that will form part of Prostasia Foundation’s draft Best Practice Principles for Sexual Content Moderation and Child Protection. Please consult that master thread for background information.

Here is the current text, to be used as a starting point:

Users should be notified when their content is added to a hash database or blocklist, or is subject to context-based restrictions.

Please post your comments and suggestions below.