Why can't posts be updated? I can see that in many situations, you'd want the post to remain the same.
However, I see a lot of use cases for posts that can be updated, that are not static. Maybe that you can pay more for?
I've been thinking about this a while, and especially since following this post - Easily attach wallet to SEND & RECEIVE sats from SN with Coinos.io and HODL. There are some great, detailed instructions in it, but they were (partially) out of date quickly. The post was made Sept. 21, and just a few days later it was already out of date, because of changes to the CoinOS app.
Somebody trying to follow the instructions from the above post now would either be unsuccessful, or have to painstakingly tease out the updates from comments. Not impossible, but it would be a lot easier if you could just update the original.
So, I can really see the use case for editable posts.
Also...just for making things easier to understand. For instance, the author of a "how to" post would be able to clarify things that readers are having trouble with, add or subtract steps, update screenshots, etc.
id
originalItemID
createdAt
title
text
editReason ?
nEdits (sum of related rows in ItemEditHistory)