Because hyphenated last names (much like conglomerated brand names and professional firms piled high with partners) are imprecise and dilute the ability to be approachable.
I support literacy (no revelation there, not that many are against it) and would like to share some good books with points of view about the world at large. The first in the series is... Dry by Augusten Burrows. A truly witty, and thus endearingly honest, memoir of an advertising guru's journey into and through sobriety, friendship, and mortality. It seems real enough to pass for autobiographical .