Say there's a person who is always on-time to work and does the job exceptionally, can always be counted on to fulfill personal obligations, generally is a very responsible person... who is stoned literally every waking moment. Gets up in the morning and before peeing, eating, or drinking a cup of coffee, has to get stoned. Carries a pack of ten pre-rolled joints to smoke during a four-hour round trip drive. Goes to work stoned every single day (but as I said, does the job perfectly and always comes in on time). Generally smokes enough weed that s/he never actually seems stoned.
Would you consider this person to "have a problem"? Elaborate if you want. I'm curious.