Donor List Kiss of Death: Mr. and Mrs.

A nonprofit that my husband and I both love totally screwed up its recent annual report donor list, in at least three ways I saw, and odds are, many more. By insisting on using the too-formal and very outdated Mr. and Mrs. listing, because it supposedly confers more respect on donors, it instead has done two downright awful things: 1. Wrongly guessed the gender of some of its most loyal supporters; 2. Alienated couples who consider themselves a marriage of equals. How respectful is that?