Everything already mentioned as far as the idea of bribery, dog "should" want to work for owner because of "love." Won't work without treats etc....
The one from the other thread that astounded me was that it won't work for hard core aggression-related issues or other problem behavior...manners etc. That is so not true. As a trainer, I've worked successfully with with a lot with dogs that had bitten people and some other serious problem behaviors, as well as regular puppy silliness, mischief/manners, obedience etc.
Marker training merely means identifying the behavior you like to the dog. PR, as opposed to punishment based training includes very much so....preventing the unwanted behavior while emphasizing the wanted behavior. If you prevent the unwanted behavior in the first place by setting the dog up for success and hurrying to reward before the dog messes up, you just eliminated the feeling of the "need" to punish because the dog didn't do the "bad" thing.
What is this bit about PR and off leash success? How crazy is that? That's mostly all my dogs and I did when I lived in Idaho. Off leash every day with all kinds of distractions.
With my own dog, Lyric, he had a rock solid and reliable stay, recall, even off of mid-chase after 4 or 5 deer once on a hike. He was very obedient. I could leave him in a stay behind my garage and walk down into the pasture, about 200 ft away, out of sight and he'd stay put for several minutes until I came back to him, even with distractions like other animals in the pasture. I worked on this a lot, using a clicker and building on it. I think only once or twice did I have to replace him in a stay because the vast majority of the time, I prevented a situation where he'd break the stay....almost invariably. I called to him from 2-300 feet away when he was chasing a dog in my pasture. I told him, "halt" which he did promptly and then "down" which he did while I went to him. All this off leash, all without punishment training. So, what are these people talking about?
My Chi's aren't that well trained at all. I don't need that from them. But they have very nice manners, walk well on a leash, and have their basics plus a few tricks...nothing out of this world mind you. They're well socialized and sweet.
I am not interested in competition other than competing with myself, so when people ask how many titles someone has, as if it takes titles to show that you have a satisfactorily trained dog, I have to roll my eyes at that. (see that in other threads a lot) My dogs were trained and obedient for MY purposes....to suit my life style. Hiking in the wilderness required some very strict rules to be safe and those things were what I needed and I like a dog with nice house manners...not to compare to other dogs and their training purposes. Competition is great and fun if that's what you're interested in. I use to compete with my horse. But because someone doesn't have titles doesn't mean they don't have a well trained dog. You should have seen some of the hunting dogs my Dad's friends had. Stupendously well trained and guess what.... no ribbons or titles.