TBH I prefer this approach to what OpenAI is presenting - if I prompt to present the benefits of X I want the result not openai’s opinion on the matter. Sure, you can add a disclaimer that it’s hypothetical, wrong, whatnot - but not outright decide on what can you answer and what answer will not be provided.
ChatGPT is notoriously bad in “knowing better what you asked than yourself”.
As both user and developer - user CAN contribute but the developer/maintainer SHOULD add the screenshots.
I see you wrote that you’re thinking about making it FOSS. What’s the alternative? Paid software/non-free license + Open Source or proprietary? If you’re low on time and don’t have the capacity to maintain (bugfixes/reports from users) yourself then I say proprietary is a no-go. Then about the license - IMO (though I don’t have hard data on that on hand) people much more likely contribute to FOSS as opposed to locked in license + open source model.