I think we can agree that distributed is better for the consumer than centralized (privacy and availability), but given that the Blockchain is not the only way to achieve a distributed architecture, I'm interested in why I would use the Blockchain when I can achieve similar results with an arguably simpler solution.
It's the only decentralized system that can guarantee availability. Data stored in Freenet, BitTorrent and the rest is ephemeral.
The Blockchain is a ledger, BitTorrent is a peer-to-peer file share service. Difficult comparison.
What other systems exist that provide distributed trust architecture?