How about introducing the ability for the op to add to their first post at any point, not just for a few minutes after posting.
Not edit it or remove it, just add additional information. So often people don't read through and the situation has moved on or more info has been added that has changed things.
Yes I know we've got see all and people should use it 😁 but it's clear lots don't.
It's something to consider, maybe?