That reminds me of the early "good ol' days" when folks kept using the Reply All function and email boxes got filled real quick with these huge email files for those days. I ended up actually automatically deleting emails from certain relatives of mine who made this a practice. It was almost as bad as folks using All Caps when writing, which those not interested to learn apparently did not know was the equivalent of yelling and shouting at someone.
I do like the idea of context, but Chris' mention of quotes is exactly what we expect from authors, bloggers, speakers, writers, and more. Email is an actual writing product, and while we certainly don't have to be experts to write or use email there are protocols established that are acceptable usually across the world (and I apply that to messenger and tweets for myself).
I'm going to have to figure out a good approach and how to word it simply, plainly, and thorough enough. As a trainer, instructor, and educator I can also know some folks just won't be responsible or learn. But then that is where discipline applied by moderators of a group can keep an eye out for and have a basis for handling the situations as they arise without coming across as mere authoritarians or as predominantly?opinionated. IMO.
I've been bouncing around since 1978 on computers, back when we had tape drives. Wow.
gregory alan