I have lost a couple of really in-depth posts I have made to people because the cookies expire too quick.
If it is possible, maybe a warning, or remove the post button when it expires. Then we will know we need to copy the post, refresh the page, and paste.
It is partially my fault. I copy the posts to the clipboard in case this happens by habit. Every time I lost the data was because I was in a hurry and did not do this.
When I am off work, I usually take the time to open up Abiword. i do this so I have a backup in case of a browser crash or I accidentally close the browser tab.