Hesperis---I subscribe to Biblical Archaeolgy Review. There was a great uproar a few years ago when they began to use the abbrs. BCE (Before the Common Era) for BC, and CE (Common Era) for AD. Some folks threatened to cancel their subscriptions because of these blasphemies. Of course, some intransigents can substitute Christian for Common; then everybody can be unhappy.
MMario---I suspect you are being had by that (apocryphal) story about the greenboard. Fifty [yes 50] years ago, long before ethnic awareness and PC, our elementary school installed green boards (interchagably called the greenboard or chalk board) and yellow chalk. It was felt, at that time, that that combination was easier on the students' eyes.
John