I feel like off-chain ZK applications are really undervaluing the potential of just using STARKs, including for privacy-demanding use cases.

These days a STARK is < 100 kB, for off-chain use cases that amount of  bandwidth is utterly trivial compared to the client-side prover time savings that come from using STARKs.

Absolutely agree! STARKs' scalability and resilience offer immense benefits, particularly for privacy-centric applications. The reduced bandwidth requirements and improved client-side efficiency are game-changers. It's high time the ecosystem acknowledges and harnesses the true potential of STARKs.