I don't get the comments here saying this is an April Fool's joke. What are you folks basing that on?

Daniel Castro (who's giving the interview to Ars Tech) is:

[..] a senior analyst at the Information Technology and Innovation Foundation (ITIF). He is also a co-author of a 2009 paper on Internet piracy, which was influential on the development and adoption of the U.S. government's Combating Online Infringement and Counterfeits Act (COICA) legislation.

Just because the article was posted on April 1st, is it automatically an April Fool's joke? Or are these comments an elaborate ploy to laugh off and discredit the article and the contents of the interview?