This is like saying cut off your head to avoid a headache. Most thyroid cancers are extremely treatable. The multitude of cancers from smoking are much less treatable (lung, larynx, mouth, esophagus, throat, bladder, kidney, liver, stomach, pancreas, colon and rectum, and cervix, as well as acute myeloid leukemia). The most common thyroid cancer, papillary carcinoma, has a 99 to 100% survival rate if detected early. The most common smoking cancer (lung cancer) has only a 56% survival rate if detected early, and only 18% if it is non-localized when detected. Don't smoke folks.