So changing the name of the thread at the end is within the site rules?
How is that not a form of fraud?
If that is true, you need add at least one more rule.
Thread titles and posts are and always have been editable by the original poster and moderators.
If there is ever an issue, please use the report button! AW and myself are not on here 24/7 but there are plenty of other moderators that can step in and assist.