In 2023, the question was simple enough to answer in a hallway conversation: "Should we block GPTBot?" You added one line to robots.txt, felt vaguely responsible, and moved on.

That question is now obsolete — not because the answer changed, but because the question was wrong. There is no single bot. There is no single decision. And the line in robots.txt you added two years ago is almost certainly costing you visibility in the exact channel that is replacing the search traffic you used to depend on.