It was "unclear" to the extent that you didn't show the code. Perl monks are generally Perl programmers and Perl programmers are encouraged to be "lazy". One way that manifests itself is expecting the OP to provide all required information to frame their question in a clear an concise way. Following a link is often too much work and may be dangerous - it could lead to Wikipedia and waste hours of time for example.

More seriously: including a link is frowned on because links can be transient. It is much better to provide your sample code in the node because all the context for the question has the same life time - the life time of the node.