I think this quote from the article is what is all qbout. "In Shane's talk last night, he argued against copyleft because software licenses should have "no stri

I think this quote from the article is what is all qbout. "In Shane's talk last night, he argued against copyleft because software licenses should have "no strings attached". But the very strategy that is advocated above is all about attaching strings! Copyleft's strings say "you can use my stuff, as long as you give back what you make from it". But the proprietary differentiation strategy's strings say "I will use your stuff, and then add terms which forbid you to ever share or modify the things I build on top of it." Don't be fooled: both attach strings. But which strings are worse?"