Not a good idea and not a very responsible thing to post.
Every single pellet grill because of the forced air is a fire waiting to get out of hand.
Never leave a smoker unattended.........never!!!
The only time I will bend that rule is if I'm right inside the house and I have a remote thermometer that has a very loud high temp alarm, that being said there is no way in hell that I would ever leave a smoker burning while I was away from the house. I've personally seen 4 different brand pellet poopers burst into flames at comps when the team members were taking a break. The fire gets out of hand quickly because of the forced air fan feeding the flames, 2 of those fires made it to the hopper with in a few seconds and that is really bad news if you aren't right there to unplug the unit, turning it off remotely wouldn't help a thing because they go into shutdown mode where the fan is running to cool off the smoker.
Nonsense. Almost certainly USER ERROR in every instance. Keep your pellet burner clean and that doesn't happen.