1. What is the general goal of the feature?
Enhance the API of ODK central to retrieve submissions in plain JSON format, including repetitions (No OData). This could be achieved with a file extion ".json".
2. What are some example use cases for this feature?
We are using python, which has no active library which supports OData v4 (seems to be quite complex to implement as seen here: Add support for V4 · Issue #39 · SAP/python-pyodata · GitHub)
CSV is not suitable for parsing groups/repetitions...
3. What can you contribute to making this feature a reality?
Currently, we are thinking about extending the ODK central API but would like to ask first if you want to have this. Maybe you've decided explicitly against JSON to prefer OData?