Once regulations against disruptive bot traffic are effective enough that you don't need captchas, please ban captchas. But I don't see why you would do it the other way around. (Unless you secretly know that effective regulations against bot traffic are impossible.)
Oh I do believe they are possible. It is just high time that the units fighting against organised crime heavily expanded their scope to illicit online activities that actually cause financial harm by entities to entities smaller than the movie/music/publishing industries.
