Preheat the oven to 400°F. Wash the potatoes very well and pat them dry with a paper towel, place them on a sheet tray.
Using a fork, pierce the potatoes all over so any excess steam can escape.
Brush the outsides with the olive oil, then sprinkle with the salt all over.
Bake for 30-60 minutes, depending on the size of the potatoes, until a knife inserted into the potatoes goes in smoothly. Let them cool completely, or until they are cool enough to handle on the sheet tray.
In a small bowl, stir together the melted butter, pepper, garlic powder, onion powder, and smoked paprika.
Cut the potatoes in half and scoop out the insides, leaving about ¼ inch of the potato attached to the skin.
Place them cut side down onto the sheet tray and brush the outside with half of the butter mixture.
Bake for 8 minutes, turn them over, and brush the inside of the potatoes with the remaining butter mixture. Bake an additional 8 minutes until the edges are golden brown and crispy.
Add the cheese and bacon evenly to the inside cup of the potato skins.
Bake an additional 5 minutes until the cheese is melted. Serve immediately with sour cream and scallions.