And my point was that com alone would lead nowhere reasonable (aside from the Verisign NIC page), but Amazon by itself could very well lead to amazon's webpage.

And my point was that com alone would lead nowhere reasonable (aside from the Verisign NIC page), but Amazon by itself could very well lead to amazon's webpage. Just like entering http://localhost http://localhost or http://someotherlocalhostname http://someotherlocalhostname works, http://amazon http://amazon could as well (though with some caveats). No one has ever or would ever have any real reason to do that with com.