I vaguely agree; when I see that wordy explanation about "this is sent from a blah blah replies won't be blah blah" I tend to read it uncharitably, even though I know why they do it. My first read of it, somewhat involuntarily, is along the lines of: wow, these people can't even deal with the use-case of someone replying to this email, and are so befuddled by the possibility that the best workaround they could think of was to tack on this wordy disclaimer in the email, begging people not to hit "reply".