I've seen quite a few pictures of people imitating Millie Brown's performance art (hopefully not actually vomiting), but even so, it's nothing to take lightly. Millie has trained herself in that art and is very careful with how she does it. Do not imitate someone else's art for likes or popularity or to feel cool, because it's not. It can be very dangerous and could backlash her in the media. Create your own art, build from your own passions, follow your own path. Be smart, be creative, be you.