I don't normally add to a post, but I considered that the timezones may play a part.
My post may raise the argument "She needs to know that she did the wrong thing", and perhaps she does, but I think we as the practicing adults here, need to consider the environment she will be learning her lesson in.
I was a properly noxious, selfish teenager, and I was not above trying to lie, to get something I wasn't entitled to. Mostly alcohol. But, when I did something wrong, the wrong-doing was local, and so were the consequences.
This girl, in my time, would have been picking a fight with the local bridal boutique. She would have been told no, showed the door, and if she was lucky, her parents would have heard about it before she got home. At the least, she would have suffered punishment at their hands. At the worst, she would have suffered the disapproval of her teachers, sniffy looks from other shop owners, and a good deal of sniggering from her age mates (at her failure). And it would have passed.
Yes, its a digital age, and so her attempt reflected that (claim to be an "influencer") and therefore the audience is wider. But the consequences for stuffing up, and poorly judging her reach, are a great deal bigger. Reddit can be a cruel place at times, and often the social expectations change depending on the person, so its a bigger stick that can deliver a consequence. And so the outcome can have a much bigger, and more savage impact. But, she is still a silly child, who thought she could big mouth her way in the world, and instead inserted her foot.
Just my thoughts guys ....... I work with kids, and I know how they can do your head in at times.