Perl Security: 2. Avoiding insegure practices: The strict pragma
strict 'refs': Symbolic refrences

Quite an obscure and (fortunately) seldom used feature of Perl

Too error prone... How often do you wirte with tyops? What do you think about a very hard to detect extra '$'?

Your code can easily become a nightmare to mantain.

Scope wierdness - It always refers to variables existing in a namespace, overriding lexicals

You want it? Do yourself a favor: Use eval instead.