DANG!
There is no case of anyone actually losing a job cited. Just a couple of whiners saying they had lost a potential job or an interview by including this sorry joke on their e-mail.
One jay-bird who had lost a "potential" job says he was scheduled to start on Monday. How would he be scheduled to start on Monday if it was a potential job? And how would anyone composing an e-mail from a Google account "accidentally" include an unintended attachment unless they were half awake or smoking too much weed?