Anyone who takes a job that is called "Borgata Babe" HAS to know that her appearance is part of the job. Just as, if you work in a clothing store, you'll get fired for wearing shorts and flip flops.
Unless my smoking interferes with my job or is incompatible with the job description, the employer shouldn't care. A good example is teaching. Part of my job is to be a good example and role model. If I smell of smoke after my lunch break, am I setting a bad example? I guess we'll see! LOL! I'll start looking for a job next winter!
They didn't have these standards before. If I was to read about 'career opportunities' at Borgata, I wouldn't apply there because I wouldn't be able to fit into the outfit. However, if I was ALREADY working there as a waitress then they decided to impose a no weight gain standard then I don't know about that. That's discrimination to me.