by hobs on 6/22/15, 2:40 PM
Just like most things on HN, once you have submitted it (either comment or article) it becomes the record.
You have a limited time to edit things, but after some time you could go back and "rewrite" the conversation, this type of thing prevents that.
by anc84 on 6/22/15, 2:40 PM
Deleting content disrupts conversation, see eg [deleted] on Reddit where people can delete their posts anytime.
by DanBC on 6/22/15, 2:57 PM
Some people game the system.
Allowing people to delete and resubmit articles is another opportunity for people to game the system.
by masters3d on 6/22/15, 3:59 PM
Think of it like sending an email. You can't edit it once you send it.