Who cares, get over it.
i care. i don't want my pursuits to impede others people in public. if there was a new hobby/fad/tradition that stunk up a place, and possibly affected me physically, i'd object and wouldn't want it around me. seems only fair to extend the same courtesy to others.
i'd like society to get over the stigma associated with marijuana and generally make it more acceptable. dismissing the fact that some find the smell objectionable isn't going to get us there.