Ann's style is to convey the truth with frequent hyperbolic stingers aimed at the left and liberals. She uses hyperbole and acid humor to great effect. What she does not do, in my experience of reading her and watching her, is lie.
Her message marginalizes, in my opinion, only the left and liberals (and who cares, because they deserve it), and those unfortunate conservatives who want liberals to like them and respect them. I gave up on that back in college.
"She says what she means, and she means what she says,
Ann Coulter is faithful---One Hundred Percent!"
(adapted from "Horton Hatches the Egg" by Dr. Seuss [Theodor Geisel])