"There are two things this could reference. One is the free/pay for software mix. The Internet has benefited from having lots of free stuff and lots of commercial software. It has been interesting (to) see people inventing hybrid models. Even stuff that is pretty commercial often has free versions for some audiences. Even the most open stuff often have services people choose to pay for.
"The second thing is the anonymous versus identified tension. This is another one where both will probably thrive since you want anonymity for some things and full identity for others. I am surprised how little progress has been made in the identity space but it will improve."
If this is a full and accurate quote, he didn't discuss Open Source software AT ALL. I conclude that either he doesn't know what it is, or he refuses to say what he thinks about it.