[omowasu]

I agree that if you have to ask, its mold. Mold, mold, mold... A local B&M near me runs a humidifier in their humidor constantly, and all of the cigars in its vicinity are moldy. Some of the guys say it is plume. It is definitely not.

Whether to smoke a moldy stick is a personal decision - if it were me anything more than a small spot is too much...