I enjoy overexposing some images on purpose.  You get a light, airy look.  Keep in mind the scene should be on the light side to begin with. A dark room overexposed would not be pretty!  f/9 @ 1/100 for slight blur

Overexposed shots work very well when adding textures and other effects.  With a Multiply blend mode you will knock out the white and leave your subject clean. In this one I cropped and also added a radial blur.  With the image light to begin with, the effect doesn’t get overly dark.

Landscapes on an overcast day can benefit from overexposing too.

White subjects against a blue sky and clouds are nice too.