http://www.perlmonks.org?node_id=468286


in reply to The default hash - accident, coincidence or conspiracy?

From your example, I'm not sure what you see that is special about %_. Perhaps just that you don't have to declare it with our/use vars when under stricture?

You should be aware that there is something special about it, though. Just like $_ and @_, if you use it without a package qualifier such as %Foo::_, it references %main::_, not the current package. IIRC, this is indeed documented.