In general, I disable the ability of getting a 'read receipt' if at all possible. In the case of some rare platforms that don't allow this; I also warn people that "Seeing a 'read receipt' indicator does not mean I was available to reply.
In general; people who hang on to this little indicator are also committing a larger social faux pas, and you should { [(yellow/red) flag] / address / handle } it accordingly based on your relationship to that person, your goals and the situation.
Whether that means 'calling them out' or kindly explaining what it actually means or explaining your approach to communications; the behavior of expecting something to happen on the receipt of a read receipt needs to be discouraged in my personal opinion.