The folks in #ubuntu-server say that because it quickly placates the people who erroneously believe they're under attack when in fact practically every public s

The folks in #ubuntu-server say that because it quickly placates the people who erroneously believe they're under attack when in fact practically every public ssh daemon in the world gets probed for weaknesses. I've always believed that this was a useless measure of security. The things it defends against are are made ineffective by other security measures you should be taking anyway. In the end, the only benefit it produces is reducing logspam.