Last month when Coachella tickets went on sale and did not immediately sell out, it touched off a bit of soul searching. The two-weekend music festival had, bit by bit and then all at once, built its identity as the influencer event of the year.
Those tickets did eventually sell, but there was still a lingering fear among the selfie set: if 150,000 people showed up in the California desert and their TikToks didn’t go viral, did Coachella…