Someone that has a vague opinion of their own but chooses to forward every negative email about the subject to everyone on their email list. The "email warrior" never actually takes action to make anything better or stand up for their beliefs and the forwarded email is never actually written by the "email warrior". The "email warrior" is the most annoying type of spammer because they are usually a friend.
I got another government sucks email from xxxx the email warrior. Fifth one in two days. If he feels so strongly about it why dosen't he get off his ass and do something more than forward emails all the time?