[sph]

This is not an Epic employee that trolled the company.

This is random people on the Internet that probably didn't even know they were part of that notification group, as explained elsewhere in this thread, and then joked around a little longer than they should have. It might not been immediately clear to some that each of their responses was to be sent to all 400k.

Not at all the same crime as you paint it to be. In any case, there is no one that's fireable here, so no need to try looking for some kind of righteous justice here.