Ben Finney wrote:
I'm of the opinion that a copyright statement for the work in a Debian package should include valid contact details
...
If they want to avoid giving valid contact information
...The goal is not withold valid contact information, it is to impede automatic email-harvesting software. So far we haven't discussed munging addresses beyond human recognition, just sufficiently to impede work on machine-parsing the copyright file (which I have otherwise heard nothing about) as a by-product.
-- Jon Dowland