There is an option that lets you stop iMessages from sending send receipts to specific people, for specific chats. You can choose to activate this measure whenever you want.
This method is quite similar to the Stop Send Receipts option, but offers you a lot more control when it comes to selecting the people you want it for.
Considering that initially this option wasn’t available at all showcases how Apple underestimated the privacy needs of their customers and had to course correct accordingly.
But now that it is here, you can easily activate it by follow these simple steps:
With these simple steps, you will be able to select the chats you don’t want to send read receipts to, and then disable the feature for them, and them only. Have fun.