This doesn’t work in today’s world. Even if all of the fediverse and reddit would be on board with this idea, the impact might be less than 1% in missed sales, simply because the other 99% would not know about it because they don’t use social media, or it’s not in their algorithm, or it’s not on tv news. Plus you need to keep it going for a long time, not just a week until a different topic overtakes.