it depends on the person. Some people may have a lot of trauma associated with tobacco so being reminded of something that they might have experienced could end up triggering, say, ptsd related to addiction (as a throwaway example).

mostly I put it there as a warning for anyone who may be recovering from tobacco use and may not want anything to do with it even in a joking or text form, or like the other person said if they have a certain feeling or trauma associated with tobacco