A good friend of mine wore a white strapless jcrew summer dress to my wedding reception in October. I didn't notice it until I got my pics back and was going thru them. It didn't bother me, prolly cuz it was after the fact and she's a sweet friend. I would never wear white or even cream to anyone's wedding. When I go to weddings I pick my dress/attire based on the venue. And of course I always try to look my best but not in a matter where I would distract the bride.