Tis the season to get flooded with Christmas letters — often a litany of bombastic bragging disguised as holiday cheer. When we asked you to share some of the most outrageous letters you've received, we got a multitude of replies, ranging from missives proclaiming the joy of a $5,000 pool table to a week-by-week recounting of children's activities. While some of you saw the humor in them, they sucked the Christmas spirit right out of many of you. "I hope we don't hear from her again," wrote one reader who is fed up with a niece bragging about her escalating...