You could find that the rules you agreed to have changed without direct notification, and simply by continuing to use the service you are bound by the new terms.
Using Stability AI's services means accepting broad limitations on Stability AI's liability if something goes wrong, including for AI-generated outputs that may be inaccurate or harmful. You also grant Stability AI a wide license to use content you submit, which may include prompts and uploaded images. You can review and adjust your data rights by contacting Stability AI directly at their privacy contact channels referenced in their Privacy Policy.