Sometimes we may want to send mail to a group of people at once by CC’ing them. This is cool for 2-3 individuals or a designated team of several colleagues.
But 20, 50, 100 people? That’s not a good look and here are five (5) reasons why:
People can see and use other’s addresses. If I wanted other people to have my email address, I would give it to them. This violates our privacy. Period.
Often we don’t notice there are multiple addresses, and reply thinking I’m replying only to you — but then many people get the reply. This happens in texting, too. It can work a nerve.