Well, let's have a look at the supposed solutions. (Has Jim Sanborn agreed to these solutions? Not really!!!)
Solution 1: "BETWEEN SUBTLE SHADING AND THE ABSENCE OF LIGHT LIES THE NUANCE OF IQLUSION." - Nuance of Iqlusion??? That makes no sense. And is that a typo?
Solution 2: "IT WAS TOTALLY INVISIBLE HOWS THAT POSSIBLE ? THEY USED THE EARTHS MAGNETIC FIELD X THE INFORMATION WAS GATHERED AND TRANSMITTED UNDERGRUUND TO AN UNKNOWN LOCATION X DOES LANGLEY KNOW ABOUT THIS ? THEY SHOULD ITS BURIED OUT THERE SOMEWHERE X WHO KNOWS THE EXACT LOCATION ? ONLY WW THIS WAS HIS LAST MESSAGE X THIRTY EIGHT DEGREES FIFTY SEVEN MINUTES SIX POINT FIVE SECONDS NORTH SEVENTY SEVEN DEGREES EIGHT MINUTES FORTY FOUR SECONDS WEST X LAYER TWO" - Undergruund? Type? So, a commissioned sculptor leaves typos in a piece of art? I seriously doubt it.
Solution 3: "SLOWLY DESPARATLY SLOWLY THE REMAINS OF PASSAGE DEBRIS THAT ENCUMBERED THE LOWER PART OF THE DOORWAY WAS REMOVED WITH TREMBLING HANDS I MADE A TINY BREACH IN THE UPPER LEFT HAND CORNER AND THEN WIDENING THE HOLE A LITTLE I INSERTED THE CANDLE AND PEERED IN THE HOT AIR ESCAPING FROM THE CHAMBER CAUSED THE FLAME TO FLICKER BUT PRESENTLY DETAILS OF THE ROOM WITHIN EMERGED FROM THE MIST X CAN YOU SEE ANYTHING Q (?)" - Well that makes a lot of sense. And, yet another typo?
Solution 4: Oops.. they don't have that yet.
On the other hand, after 21 years, the CIA says they don't see any message there. Now I come along and say there is no message there. But, you guys are sharp. Don't let me sway you.
Oh... BTW, read this FBI coded message:
http://www.fbi.gov/news/stories/2011/march/cryptanalysis_032911
I cracked that one, too. The guy suffered from brain seizures and was keeping a record. DE 75 NCBE means his last episode was in December, 75 days into his medication, and "no cause before episode."
Do you want to argue that one, too?