Do I really care where you send your messages to me from !? Did our ancestors waste space and paper by having their mail pigeons carry a message ".. sent from my Mail Pigeon….."????????

Is this annoying me just because it occupies extra space on my hard disks, makes me scroll further down than need be and makes me lose time. Or am I just jealous because I can’t afford an iPhone? And is this really just advertising by Apple that cannot be turned off, or is it yet another "mine’s bigger than yours" syndrome of our high-tech information grail?
You choose.