Unlimited 999999999 or similar without going and looking.
When you post programming code and then find that you found a better coding method or routine then we want you to update your post.
We don't allow normal users to delete posts though.
Now to address Rose's issue (which we've had before too) perhaps some sort of back up routine to save the post when a user does delete (sort of like Exchange that doesn't really delete it till later on) It would only go into backup mode when the EDIT button is clicked.
