Why is it that Jack Venooker and Danny Hellman can register duals when I can't?

Miss Manners, Gagh, Sarek, Chonchaga, Seph, Loktar, Bick, Pickle, Laker Girl, Gurk, Geedis, Neil, New age Pooster, Steve Bissette, DevilMan, Blackfoot's Dick, The Kiity's, The ED family, James Bogner, The Hellmans, Sturat, Lucy, Dershocka, Gear, Rick V, Cory............