How about this quote:

"As long as people like Duffield are exchanging links without offering payment, or crossing obvious lines such as breaking captchas and posting spam links in guestbooks or comment forums, they're following the spirit of Google's Webmaster guidelines."

or this, after which the article goes on to explain how the Link Exchange Hero continues exchanging links:

"So Webmasters like Duffield turn to solicitations for links. Danny Sullivan, who writes about search-engine optimization for Search Engine Land, says "if you're a new site, absolutely you want to be doing link building. But you need to be doing that in a smart fashion."