I would say it is not anti-lds it is PRO truth.
Or at the worst, anti mormonISM, which is not the same thing as being anti mormon.
One term implicitly suggests the notion of being against ALL mormons, as well as their church and its teachings, while the other terms clearly is directed as being against the doctrine and teachings.
On open threads such as this, it would seem to allow the non-mormon adherents the latitude to label their mormon detractors “Anti Christians” or if they cared about more accurate use of terms than the mormons, properly, “Anti Christianity” since no branch of mainstream Christianity considers, or is willing to accept mormonism as Christianity (because it is, in fact, not!).
A.A.C.