Reply All

Don't use it. This morning I received an email regarding attendance at a conference that I am not planning on attending. It turns out that it was sent to a list of people who should not have received it. I then received over 40 emails from people who were hitting reply all. First, a number of people thought it was necessary to inform everyone that they did not know why they were receiving the email. Then other people started replying to all that they should stop replying to all. These were professors at places like the LSE, Univ. of Chicago, and USC. Can't we all just hit delete?