yitzchokm:
Are you providing guidance as per Reb Moshe ZT”L to anyone who had already begun smoking prior to 1962? If not, his teshuvah from then stated clearly not to start. That does not sound like “not ossur”. He was not obligating those who already smoking to stop, though he states that this would be advisable. As Reb Dovid shlit”a stated, the teshuvah was based on the data available and provided at that time. With today’s data, the psak is clearly ossur. You comment is still misleading by implication.