For me it was about the log noise. It was annoying to have to log those drive-by brute force scripts and scanners so moved it a different port. Still got some but it was 100x less.
However, I imagine once this becomes a popular enough technique, and I see it discussed on HN periodically, scanner scripts will start scanning other ports for SSH. So over time it might be less useful.
However, I imagine once this becomes a popular enough technique, and I see it discussed on HN periodically, scanner scripts will start scanning other ports for SSH. So over time it might be less useful.