That's because you are aware of the limitations. Ruby is really powerful and allows you to manipulate existing modules, but you shouldn't do that because it wil

That's because you are aware of the limitations. Ruby is really powerful and allows you to manipulate existing modules, but you shouldn't do that because it will leak everywhere. This namespaces feature allows you to manipulate existing globals, but keep it isolated in your own namespace. That seems pretty good to me :) Because it remains isolated, you can also use these features more aggressively.