While the rate limiting has been implemented, allowing the edit window to be set per trust level has not.
Over at https://forums.inovaestudios.com we have a few topics like an Art Challenges topic where the OP is maintaining the first post as a summary of all the art challenges that take place.
You may not agree with that particular usage but there are plenty of other totally valid use cases like updating dead links and correcting out-dated information so as not to misinform people that may read a topic long after it’s posted.
@codinghorror How do you feel about making this customisable per trust level?
Duplicate topic: Editing and Deleting window should be tied to trust level