You're getting played by this misleading article. There is no evidence that anyone didn't sign the card because they didn't like her. If you follow the link to the actual article, there were two other people who didn't get cards either for the same reason. It's not in that articles, but I read elsewhere that because this happened during COVID it was just difficult to get people to sign them.

The woman sounds like a dope, but most people are kind and would sign the card anyway. Most people aren't looking to get petty revenge against people they don't even know that well.