LOL! I think it would not be so much useful as in production, but for education or experiment purpose, it can be a good sample of setting up AWS Lambda, using Rust/Elixir and blockchain, or even for performance benchmarking or comparison.
Would you use it if you could run it in your own cloud with Kubernetes?
Regarding perfomance, it's very fast already, and I have lots of room to scale both horizontally and vertically.
I was going to say... I’d hate to rely on a web service I don’t own for anything other than playing around.