Created using feedback from https://lemmy.cafe/post/4823550. Maybe this can be useful.
Transcript: See something off? Do your part to keep the Lemmy community safe:
R - Read the rules of the community.
E - Explain your report, including rule # when possible.
P - Provide context the mods should know.
O - Opt-out, disengage, downvote or block. Don’t add to the drama.
R - Reach out or report right away. *For extremely time-sensitive content (CSAM, gore) DM an admin via Matrix: Instance homepage > Sidebar > click admin’s @username > Send Secure Message
T - Trust your instincts. If in doubt, report it.
It’s not so cut and dry with Lemmy either. Admins can still view it (though not as easily).