use warnings is listed in How do I post a question effectively?, but many don't seem to notice.

Apparently we need to hack a web page with an interactive help center dialog :)

• did you use warnings
  • o yes
  • o no

-->

• did you use strict?
  • o yes
  • o no

-->

• did you dump your input/output data?
  • o yes
  • o no

--> and so on