Who's exactly refer to the act of "confessing a secret" here?
You are going to read one of a series of articles from The Times called Family Secrets, which are unsigned and use fictitious names, and in which readers of the newspaper confess a secret.
If I'm not wrong 'confess a secret' means 'admit a secret' or 'reveal a secret'.
So here, why the author wrote 'readers confess a secret' instead of writing 'A member of those families confess a secret'?