The Stamp Of Disapproval

It appears that the stamp collecting fraternity of America are not happy with me.  I think I’ve really pissed them off.  I may well have a stamp-collectors’ fatwa issued although what they’ll do when they track me down is anyone’s guess.  Lick me to death probably; I’m sure there’s worse ways to die.
What have I done to induce their ire?  It’s all about my short story ‘Two Penny Blue’.  Now for those who are not familiar with the world of philately, a Two Penny Blue st...