Great posts, Liza.
I don't see anything wrong with these, personally. I use a "Halti" collar- but that was only to control excessive pulling (he does not pull with this on, so I do not have to "yank" at him at all).
Mimi, your opinion is your own. It's not mine and obviously other people's either. Regardless of whether dogs are still wolves or not is irrelevant. When you get a big group of dogs, they may snap at each other (and even cause the other pain) to tell each other what they do not like. Dogs do use force. That's not, of course, to say you have to.