Manipulation of any record would immediately trigger a notification to all affected users, leaving me with nothing but a destroyed reputation.
The most granular use I can think of is telling someone in-person to load your XMR ID on their device and then confirming what you see.
Coupled with a client that stores the result in a local address book - and compares it with the current DNS responses every time - even senders can be sure that they are still working with valid information.
(An extension to the official Monero client supporting this is in the works.)