civilians do not have edit capability.
You can always just post that you need an edit. Then when the mod edits what you ask to be edited, he/she/it/they then also delete the edit request. That way there’s no fact trail for the CIA to follow.
What if you don’t want to do it publicly? The next best thing is to get ahold of a mod through private chat if there’s a big edit issue. I’ve done that before with various posters.
You see the chat icon on the lower right. Click that and you get the list of active online posters. If you click their name you can send a private chat message.