You have to consider too that some don't actually DB. They come here for advice and then don't take it. They don't bother actually reading DB or DR. They quit after a short time when the WA doesn't respond the way they want. They are not into actually changing to become a better person. They change to get something they want and when they don't get it, they go back to being the person they were.
My heart does go out to those who sincerely change and practice DB and it still doesn't work out. I know they become a healthier, stronger, and better person because of those changes.
I was about to WA but found DB and this board. I haven't posted much but read the stories and DR. It gave me hope that things could change and they did. As Michele has said, one person changing causes the other person to change and that is true.