Yes and no. Some of that is correct, some of it is misleading. I humbly suggest you read (tye)Re: A question of style which I think clears up some of this.

It is particularly unfortunate that the FAQ suggests using "foo()" since all-lowercase function names is the one case where I can recommend using "&foo()". It also overlooks the real potential for good error checking by intentionally leaving off the parens (for functions with mixed-case names).

        - tye (but my friends call me "Tye")