This subject is hard to sort out because of a variety of factors, most mentioned in this thread. As usual, there are no rules. First and foremost, the overall market can fit on the head of a pin unlike for, say, some skin care, weight loss, or food product. That means the value of influence is pretty earthbound. (An analogy, in days gone by, was advertising. Shows would spend heavy on NYT ads, but national ads would be close to non-existent.) There is a maxim that you need to remember that you want to sell every ticket, but you have to sell it at a cost that nets a meaningful profit. The sort of Gen Z influencers that folks associate with the word will sell some tickets to shows within the demographic, but not otherwise. Celebrities sometimes sell some, but more often are just a blur at opening nights and more often they are invited to window dress the "mingle" that investors are looking for. As everywhere, it is not hard to find people who are influencers/celebrities/whatever in their own minds. You will not find the jet-set influences with zillions of followers focused on the theatre. Finally, figuring out how to develop WOM is still a WIP. There is no one size fits all and nothing is static.