Board Thread:False Info and Speculative Discussion/@comment-4772791-20160227092158/@comment-26879545-20160301135212

It's pretty clear that's their theory since they used the words "it's probably." The fact that the beast gets more memories every time it transforms is canon (Stated by Chris and hinted at by Valack). The DD's do have a finite amount of time (as stated by them in Creatures of the Night), so that's canon as well. Though the bit about transferring spirits/power is part of the "It's Valet's body" theory they have going on there.

If you really feel the post needs a "this is my theory" label, you could just edit that in yourself instead of deleting posts.