I don't know about you but I'm always hearing horror stories about people getting group e-mails, usually business-related and they make a snarky comment about one of the recipients, usually the boss, and they think they sent it only to the sender but find out that they hit the "reply all" button and all hell breaks loose.
Now I may not be a rocket scientist and I don't have a college ejamacation but I CAN read and I DO know the difference between "reply" and "reply ALL." It's pretty easy, actually. One of the choices has the word "ALL" and the other Does Not.
If you want to reply ONLY to the sender of the e-mail, choose "reply." This way, your comment about how The Boss is such a knuckle dragger and is only one step above Neanderthal and it's a miracle he can walk and chew gum at the same time due to his family tree not having any branches and his gene pool lacking a deep end goes ONLY to the person you intended it to go to and not the whole department. Including The Neanderthal Knuckledragging Person Who Signs the Paychecks.
Now me, I have the opposite problem. I frequently received group e-mails that require the "reply ALL" choice and I find myself replying only to the sender instead of ALL.. And then the rest of the group gets denied my Pearls of Wisdom regarding whatever matter is being discussed and debated and then the rest of the group is left to flounder helplessly and aimlessly until I re-send my reply to everyone else and then they all breathe a sigh of relief when they get my reply and they'll nod to themselves and think, "Thank GOD for Kelly!"
Okay, they don't.
But they SHOULD.
You can tell just by looking at my 3rd (or was it 4th? I think it was 4th.) grade picture with my Campfire Girl Honor Bead choker that I would NEVER accidentally hit the "Reply All" button by mistake.
I'd lose an Honor Bead.