[gazpacho]

One big failing of OpenTelemetry's traces in particular is that attaching structured data to them is difficult. Most structured logs can be JSON which for all of it's faults most things can be serialized to JSON. OpenTelemetry's attributes on traces are much more limited, they don't even support a null/None value! I wish they just accepted JSON-like data, it'd make it much easier to always use traces.