Normally a hoaxer or a practical joker will not go to such extreme lengths to fool the public. Both parchment 1 and parchment 2 contain some highly elaborate codes in addition to a profusion of hidden messages, signs and allusions, many of which have resisted decipherment to this day. Anyone who has looked into the subject of cryptanalysis will know that it is vast, complicated and requires considerable perseverance to even begin to understand its complexities. It also requires a particular type of mind to be able to understand clearly all its aspects. That is why an amateur code maker would quickly reveal himself to an expert.
Most hoaxers restrict their material to a fairly simplified structure.
They are after all only interested in a quick, usually humorous conclusion. However while an art forger stands to gain perhaps millions by selling his finished painting on the open market, it is hard to imagine how our manuscript forger has managed to gain enough to justify the considerable effort required to create such elaborate pieces. Particularly if he had to devise the codes as well. The text of the headstone has not been in existence since about 1893 when Sauni re tried to deface it. The forger would have needed to know of the existence of this solitary volume.