Because it is fueled by pure hate. There is no bottom to the slander and mudslinging of the Huck Haters. They don't realize how much it reflects upon their own characters and not upon Mike Huckabee's.
That said, have to say I am no supporter of Huckabee; and in fact, do not understand his 'Republican' appeal as a leader - given his record. He surely a Democrat; albeit a 'Christian' Democrat; but the 'D' word is a big one and a critical one as it fashions America's future.