Yeah there is nothing you can do. Stupid people are going to do stupid things. I don't even bother to warn random people about this stuff anymore. They don't listen.
All you can do is not add to the problem. Don't breed gliders and just make sure the ones you have are happy and healthy.
Don't support her and don't bring attention to her. She'll be happy with more views and comments. She's probably only doing it because she loves the attention.