I have to say, I have a certain amount of respect for these 21st-ers.
For people with eccentric beliefs, including religious and paranormal, it seems much more common for them to find ways to avoid testing their beliefs. To avoid putting anything on the line for their beliefs. To avoid putting themselves in a situation where they might have to admit they were wrong.
These people have done what is usually unthinkable in those circles: they've made a prediction, picked a date, and gone way way out of their way to advertise it. To everyone.
My best hope is that they will recover from this, question their beliefs and actions, and learn from this. I feel especially bad for the kids who are being dragged into it. But again, I hope their life after this is better for it, than their life before.