When I request the favor of a reply, it is impolite not to respect that. I too am busy and a volunteer. I have a sense that you, Sue, do understand the dynamic because it is often because you make the effort to bring the contributor to the table so that they show up to comment.
I would like to apologize publicly to Robert for calling him out so soon after the original post. That was unnecessary and I realize I need to be more patient in the future. I should have waited several more days.