[jokethrowaway]

We already have schema based validation in tons of different shapes.

A binary format may save some bandwidth and be slightly harder to reverse engineer - at the cost of being easily introspectable out of the box during development.

I don't think there is enough value to sell something.

I hope it gains traction and cargo cuting companies with bored engineers start using them, so hopefully the next company I work with won't have some terribly complicated and unusable graphql but just protobufs.