Prepare the potatoes. Preheat the oven to 400 degrees F. Scrub the potatoes under cold water and pat them completely dry. Use a fork to poke holes all over each potato.
Season the potatoes. Rub approximately 1 tablespoon of olive oil over the entire surface of each potato. Sprinkle evenly with 1 to 2 teaspoons seasoned salt and place on a rimmed baking sheet.
Bake until tender. Bake for approximately 1 hour, or until a sharp knife slides easily into the thickest part of each potato.
Warm the chili. During the final 10 to 15 minutes of baking, heat the chili in a saucepan over medium heat until simmering.
Load the potatoes. Remove the potatoes from the oven, keeping them on the baking sheet. Cut each potato lengthwise through the center and gently press the ends inward to open it. Fluff the insides with a fork.
Melt the cheese. Top each potato with 1 cup warm chili and 1/4 cup shredded cheddar. Return to the oven for 5 minutes, or until the cheese has melted.
Add the toppings. Top each chili baked potato with 2 tablespoons sour cream and 1 tablespoon chopped chives. Serve immediately.