The Westbro Baptists not only read the Bible (unlike the vast majority of those who consider themselves Christians), but they have the integrity to follow the principle of sola scriptura to its logical conclusion. It's an ugly conclusion, I will concede you that, but for that very reason I favor it. These people have done more to discredit Christianity than Richard Dawkins, Christopher Hitchens and Robert G. Ingersoll combined! Those men could always be accused of being prejudiced against the Bible - of deliberately twisting the scriptures to fit their anti-theist agenda - but you can't accuse Rev. Phelps of that. He's a Christian who 'gets it'. He sees the Christian God for the psychopathic monster that he is and embraces Him!
And what does "intellectually dishonest" mean?
An intellectually dishonest person is someone who consciously refuses to take responsibility for the contents of their mind and thus fails to arrive at an internally consistent worldview. Like insisting that blood transfusions are the same as drinking blood and thus unkosher, while scarfing down bacon and clam chowder.