Thars cedar in them thar tubos too.
I don't know. I've just heard people mention to check on certain [Fuente] cigars becuase they tend to mold quickly (i.e. Anejos). Not sure why. It could be the humidity in the humidor in addition to the humipacks that are also placed in the boxes at the factory.
The box[es] of GOF I picked up did have the humipacks in them IIR, but I removed those about the same time I received them. I bought a box of Sharks a few years back, and never even cracked the cellophane off the box for about 1.5 years or more. The talk of mold (along with my general curiosity to just see the cigars) made me open the box. Fortunately, there were no issues even with the humipack still in it.