The trouble was not people editing other members' posts.
This is something that was never supposed to be a feature. A bug was preventing a time limit from going into effect. Now it is working properly.
As was stated here
https://www.backyardchickens.com/t/696391/how-do-i-edit-an-older-post#post_9450367
This policy has always been in place but a bug prevented it from working properly.
There are also suggestions for get around it.
As also stated here...
Rob posted a great solution here
https://www.backyardchickens.com/t/696391/how-do-i-edit-an-older-post#post_9450367
And I even offered to assist in certain situations
https://www.backyardchickens.com/t/696391/how-do-i-edit-an-older-post#post_9446001
We put a time limit on editing posts. This prevents members from editing out old posts which can mess up the continuity of the threads.
If you need to edit a post like in your situation, please PM a staff member with the edit and why it is needed.