"The LORD" in the era of the internet: what's with ALL CAPS

I discovered something that needed explaining to my Sunday school class. When the Bible says LORD in all caps, the "all caps" does not stand for shouting. That is what they have known basically their whole lives: WHEN YOU TYPE IN ALL CAPS IT MEANS YOU ARE SHOUTING. Just a note of things that need explaining, to people who grew up in the internet era. Back before "all caps" meant "shouting", LORD (in all caps) meant that God's actual name was used, but was considered too holy to write or pronounce. Not shouting.