I've started putting whole potatos directly onto grill grates. IMO, they're quite spectacular over any kind of charcoal. I suspect cooking them on a pellet grill would be outstanding as well. IMO, boiling only provides a consistently pleasing mashable medium that's a carrier for whatever you then add, butter, salt, pepper, etc. Smoke however is a welcome additional complexity of flavor.
boil potatoes till done. Add Bacon bits, chopped green onions, salt,pepper and Ranch dressing. Serve hot or cold..........enjoy