Have you joined their group? You have to do that first.
Then, I searched for two things: "Steve Powell" will pull up a bunch of stuff; and "Puyallup" will pull up the rest.
It's REALLY interesting in hindsight. He makes so many comments that could, at the very least, be considered ironic. He talks a lot about his two oldest kids (Jennifer and Josh) who have been brainwashed by religion. He absolutely obsesses over the Mormon church and his ex-wife - he hates her as much as anyone I've ever seen in a divorce. And he constantly makes sexual comments - some so graphic and disgusting, I can't believe someone didn't tell him to tone it down, a lot.
Even without hindsight, I think I would think I was reading the ramblings of a very disturbed individual.
I wonder if there is anything there that would be of interest to police and/or prosecutors.