I was in need of a Visual Basic 6 decompiler and searched for one without referring to the webpage full of decompilers that you linked to. I found a couple of links to decompilers for older versions of VB, I found someone saying that VB decompilers for new versions don't exist, I found several people asking for one and receiving no answer, and found several VB "decompiler defeaters," one of which the web page you linked to lists.
Looks like Visual Basic might be safer than Perl after all.