Does phentermine cause thyroid cancer

A fantastic story. The thyroid issue was not the total cause of his/their problems. Adequate replacement therapy returns function to normal so he must have been an asshole to boot.

Don't get cancer or any serious illnesses dude cause you will be on your own.

...that smoking does not kill, or that it is in any way good for you. The point (which is actually fairly well made) is that there is likely more to all of the cancers and other diseases than governments/big businesses are encouraging us to see.
Yes, smoking is bad. Yes, it can kill you (although there is evidence to suggest that there is a genetic factor that plays a role in whether a smoker will get cancer or not). Is it the sole cause of all of our lung cancer? Doubtful. It is A cause of lung cancer.
The more important point, I think, is to look at EVERY scrap of information with a critical eye. Do not accept claims as truth without investigating it for yourself.

I hate to reveal anything but Julia does NOT have cancer nor any other disease.

Looks like dirtyjoe69 stopped publishing shortly after this essay. Hope smoking did not do him in. He was/is a remarkably varied and inventive author and I wish he would find his way back.
But, concerning smoking, he has a legitimate question, but I think there is more than one answer. These are my observations.
1. As he says, smoking does cause cancer, but maybe not as much as statistics suggest.
2. The second hand smoke issue is dubious and while it can cause cancer, you would be hard pressd to get a serious estimate of how many cancers it does cause. Not zero, but the actal hard data is nonexistant or never actually stated.
3. Smoking and second hand smoke cause other serious problems with COPD being the elephant in the room. I think COPD may be enough reason to ban smoking.
4. Medical statistics are horribly inaccuate and official designation of cause of death is often wrong or ignores the complication of multiple contributing factors. (Diabetes, for instance can provide a stimulus for cancer as it compromises the immune system.)
5. Lots of other chemicals cause or facilitate cancer but the doctors and the lobbyists are happy to stay away from blaming corporations and the failure of goverment oversight of our food, workplace and household/garden chemicals.
6. I would point out that 40+ years ago, a lot of folks died of other causes at earlier ages before cancer (from smoking or any source) could get them. Example: Heart attacks for late middle-age men were much more often fatal in the 1950-1970 period but these people live longer now to die of something else.
7. I would also point out that many of the cancer cures are bogus since many cancers are treated when they would not have developed to become a problem. There are a lot of women with mastectomies and men with prostate surgery for cancer that would have gone unnoticed decades earlier and never developed to be a problem. (Some cures are real but most just suck our money and insurance money into the big fat feeding trough of the medical machine.)
It does not take much reading of the medical and scientific literature to realize medice is a business first and an occasional health improvement is only lucky frindge benefit.