Xmas or Christmas? Distinction without a difference?

Here is an answer to another question on this board: "Xmas or Christmas? Make up your mind! Stop crossing out my Savior's name!" The earliest Bibles were hand written, mainly in Greek, and were abbreviated wherever possible and clear. Thus, "Christ" in Greek ("Kristos") was abbreviated to the single letter, Chi, which looks like the Latin "X", but is equivalent to "K" or the hard "C". Thus, to write Xmas today is NOT to cross out the name of Jesus, but is a fine and very old Christian tradition. Agree? Disagree? Want to lynch me? What?