Your favorite artist, at one point in their career, was an opener for someone else. You do not know who around you is fully tuned in, fully entranced with the artist on stage, falling in love with something new. As a fellow audience member, it will not kill you to hold onto your opinions and wait to run your mouth until after the set has finished. By the way, if someone is actively pouring their heart out to the crowd onstage, I guarantee nobody around you gives a shit about your $20 meat patty. Save it for the Uber home, Debra.