DefCon posted an interesting article on the use of Satanic symbols by Mormonism.
There is a commonality among all cults. This commonality is their attack on such accepted Christian beliefs as the Trinity, the deity of Christ, His atonement for our sins, salvation being through faith by grace alone without works, the beauty of what the cross signifies, etc. Like the Jehovah’s Witnesses, Mormonism also has an aversion to the cross (as does Satan since that’s where he was defeated). So to direct the masses’ attention away from the only thing that saves them (the finished work that was done upon that cross) these cults come up with all sorts of ways to defame the cross.
Read the rest of the article here.