Geoff Johns may be a bigwig over at DC Comics nowadays, but back in 1996, he was another Superboy reader staking out some real estate in the letters column.
What's interesting about his assessment of Superboy #20 is how wonders if the hero is a half-clone of Lex Luthor. Seven years later, Johns would write this exact plot point in the first issue of the 2003 relaunch of Teen Titans.
Oh, the vagaries of switching creative teams. Johns joins George R.R. Martin in the Annals of Before-They-Were-Famous Comic Book Mail Bag Scribes.