The absence of strict, warnings, and taint don't necessarily imply a bad script. I'll grant that they increase the chances that a script doesn't do what are commonly accepted as "bad" things, but they are not necessary. There are some I know that code under strict and warnings, but then remove them when the final cut is made so as not to be anti-social and assume that everyone wants these module loaded. If there was only One True Way to code Perl, those modules wouldn't be modules, they'd be part of the language spec.
Feel the white light, the light within
Be your own disciple, fan the sparks of will
For all of us waiting, your kingdom will come