Ha, that article is mine. Unless I specifically include express terms of license, people should respect the U.S. copyright laws and general protocol to obtain permission...

For record, I never released anything as "public domain" meaning you can do whatever you want kind of deal.
I released some material on the web with a type of Creative Commons license that requires proper attribute and allows no derivative work or commercial use.

When asked, I'm generally generous about non-commercial reprint permission. I am usually happy to participate in interviews, lectures or contribute articles. But stealing article without identifying the original author isn't cool...