Why warship hulls lost scuttles

Why were scuttles eliminated from warship hulls?

They can compromise hull strength and produce conspicuous radar reflections.

The response treats the change as more than a simple matter of fashion. Every opening interrupts the continuity of a warship's hull structure and must be reinforced. Scuttles also create shapes that reflect radar energy and make signature control harder. Modern warships therefore gain both structural and stealth benefits by eliminating them from the hull.