This is the perfect place to do it! I agree with you, and if you've ever heard the sound of a debarked dog barking, it's horrible, they still make a noise. Many puppymill breeders do it by just jamming a steel rod down the dog's throat. I have heard of certain cases where vets will do it if there's a good reason. For example, someone is threatened with eviction if they didn't rehome the dog due to barking issues. In cases like that, I guess you have to look at the whole picture and which would be least traumatic for the dog. Anyway, I wonder why you are seeing so many ads for debarked dogs, could this be a code for a puppy mill breeding dog?
Here's the way a debarked dog may sound.
The funny thing is today both the dogs were barking at someone they saw in the park behind my house, and I thought how beautiful the sound was, they are both feeling great when they bark like that, and that makes me happy.