From Wiki
“Son of Perdition is also a phrase used by The Church of Jesus Christ of Latter-day Saints (sometimes referred to as Mormons) to describe a person who will not take part in the glory of God in the afterlife.”
Joseph Smith and his ilk wont be in Heaven...
He is bound for Hell...
So according to the mormons, Joseph Smith is a son of perdition...
Son of Perdition wiki
Christian eschatology said that, this is where all of the confusion come in, others speak for another than their own faith and people go away thinking that is what the LDS believe and that is totally in error.
This shows when someone grabs something off the internet and do not fully understand what they are throwing around reveals carelessness in their thinking!
Dag NAB it!
I don't wanna know what one IS;
but how a person gets to BE one!