Is Tik Tok's calligraphy a scam?

It's not a scam, but this kind of online calligraphy contest is held by some non-governmental organizations, and there are some competitions like this, which are not very formal. In fact, it is basically useless to win some names and awards in these events. If you want to take part, you can practice by yourself, just add some experience, and don't take him too seriously.