Even the happiest places around have rules to keep them happy places for as many guests as possible. You can't just do whatever you want at Disneyland, for example. If you're standing up on all the rides and making it unsafe for others, they're going to ask you to leave. If you cause a ruckus at Baskin Robbins, you're not going home with your Gold Medal Ribbon.
And as we're seeing now in increasing numbers, the same goes for social media, no matter how high-profile you happen to be.