Charles Armitage discusses disintermediation and how marketplaces can manage the risk. Disintermediation refers to transactions occurring off the platform between buyers and sellers. It presents risks like lost revenue and data. While disintermediation is not currently a major problem for Florence given its regulated industry and vetting processes, managing it is important for growth. Strategies include providing value-added services, incentives for loyal users, and governance rules around off-platform transactions. The key is continually enhancing user value to make transacting on the platform more convenient.