You can slander and mislead, but he didn't do it so you can't prove it.
As fro Mormonism being based on polygamy, LOL! you are so far from reality that it's hard to see you from here. (reality)
For anyone who's actually interested,,, http://freerepublic.com/~delphiuser/#Polygamy see my Page’s section on polygamy.
Can any MORMON prove JS actually learned ANYTHING that was untrue about PRESBYTERIANism?