PALM BEACH -- Conservative columnist Ann Coulter is nationally notorious for vitriolic broadsides, but she has been unnerved by invective she received at her Palm Beach home. So much so that she got the county property appraiser to remove her name from public records identifying where she lives. In doing so, she won an exemption from public disclosure of her address, allowed by law for victims of stalkers or harassment. Coulter, 45, has called Democratic presidential candidate John Edwards a ''faggot'' and said she wished he would be killed by terrorists. She once said President Clinton ''could be a lunatic''...