A lot of people want to leverage form with DAM assets. Simple example, you have an adaptive form and you want user to upload the image but instead of saving it in some other system you want to leverage DAM assets.
Two main things for such use case:
DAM has a very exhaustive set of HTTP API that can help you create folders and assets.
Form fields have a lot of events on which you can trigger the HTTP API and POST the form data to DAM.