qBittorrent's layout focuses exclusively on maximizing speed, security, and low resource overhead for the BitTorrent protocol. Adding a fundamentally different network driver like ED2K would require rebuilding the core pipeline and introducing massive bloat to a lean program.
File hashes identify the file itself, regardless of its filename. qbittorrent ed2k
Hash-based. Files are identified by a unique hash and shared across the entire network. qbittorrent ed2k