Let's not forget that some people on this board are probably smokers so let's not be rude, please. I am not a smoker, but if I was, I'd be quite offended at some of the comments posted here.
I don't like cigarettes either, but I don't think that banning smoking completely would be such a good idea. Smoking is an addiction and it's not easy to get rid of it. Heck, it's not easy to get rid of any addiction, period. I think Disney is doing the best they can to help non-smoking guests feel comfortable by having designated smoking areas. That's only the best they can do. If you see someone smoking in a non-smoking area and if it really bothers you, just let a CM know. I am sure they will try to handle the situation the best they can. Maybe those people are new to WDW and don't really know about the smoking areas.
A little bit OT but I want to share this story anyway....
Last year I was at a Florida Marlins game. It was against the White Sox. There were a few White Sox fans sitting in front of us who were very rude and obnoxious. All of a sudden, we smell cigarette smoke and it was one of the White Sox fans. We kindly ask him to put the cigarette off, since of course, smoking was not permitted. He was like, "Oh, it can't bother you up there," and continued smoking. Of course it did go up where we were, especially with the wind. Finally, someone called security and they had to put the cigarettes out. That didn't stop them though. They lit the cigarettes again and yes, security was called again.
Some people are just rude.