Artist Jingna Zhang built Cara, a platform explicitly intended to protect artists from having their art stolen by AI...and yet these people just won't leave them well enough alone.
Going out of their way to disseminate creators' art in the specific way they have asked not to, then to go and gloat about it is peak disrespectful jerk behaviour, and seems commonplace among the pro-AI crowd.
To give an analogy, if someone cooked a noodle dish, shared it with the public and asked people to use a fork or chopsticks, it would be one thing for you to take some home and eat it with your hands on your own. Weird but whatever. But to go and post online about them eating with their hands or another way, mocking the wishes of the creator for any reason other than disability accommodation, that's not illegal but it is hella disrespectful and hurtful.