In a medium bowl, whisk together the mayo, sweet chili sauce, sriracha, honey, and rice vinegar until smooth and well combined. The sauce should have a vibrant orange-red color with a creamy, pourable consistency. Set aside while you prepare the chicken. I like to make this first so the flavors can meld slightly while the chicken cooks.
Preheat your oven to 400°F. In a small bowl, combine the paprika, garlic powder, onion powder, salt, and pepper. Place the cubed chicken in a 9x13 inch baking dish (or similar size), drizzle with olive oil, then sprinkle the spice mixture evenly over the chicken. Toss gently to coat all pieces thoroughly with the oil and seasoning blend.
Pour the bang bang sauce from Step 1 over the seasoned chicken, stirring gently to ensure all pieces are coated evenly with the creamy sauce. Spread the mixture into an even layer in the baking dish. Place in the preheated 400°F oven and bake for 18-22 minutes, until the chicken reaches an internal temperature of 165°F when checked with a meat thermometer. I find the chicken is done when it's cooked through but still moist, so don't overbake it.
Remove the baking dish from the oven and let rest for 2-3 minutes. Transfer the bang bang chicken to a serving dish or individual plates, spooning any sauce from the bottom of the baking dish over the top. Garnish generously with chopped green onions for a fresh pop of color and mild onion flavor.