I'm not kidding, it's real. Allegedly.
How the fuck are they idiots? For not knowing an obscure symbol and release date of a video game that you happen to know but 99.999% of the population doesn't? The idiotic thing would be to ignore this and let hundreds of students run into a potential school shooting, or make a thread calling concerned people trying to protect themselves and others idiots.
I'm not saying that it would be funny to see you die in a shooting because someone ignored obvious warning signs and didn't tell you. Because that would be idiotic.
If you demand respect or gratitude for your volunteer work, you're doing volunteering wrong.