It isn’t just crazy Internet people who use all-caps to emphasize their points, apparently. John Locke, writing well before the Internet age in 1690, writes early in his Second Treatise of Government (at the end of section 8):
EVERY MAN HATH A RIGHT TO PUNISH THE OFFENDER, AND BE EXECUTIONER OF THE LAW OF NATURE.
At least it’s all-caps in my Kindle edition. The Cambridge edition uses mere italics. Either way, do not mess with this man.
Inertia Wins! 