My settings were incorrect. I had not realized that I had restricted comments to registered Blogger users. As I feel the ability to comment freely, even anonymously, is vital to this method of discourse, I cannot excuse the oversight.
My profoundest apologies to active bloggers using other platforms for appearing to shun their input and to lurkers for, by extension, depriving them of the attendant conversation. I invite and encourage all valid commentary.
My error has been remedied.