What are moderated e2ee comms? How do you moderate content you are not expected to have any access to by design? And if the answer is to not have encryption, t

What are moderated e2ee comms? How do you moderate content you are not expected to have any access to by design? And if the answer is to not have encryption, then when activists or groups that are being actively targeted and threatened need secure communications but find none, who is that on?