Ask HN: How to content moderate a static web hosting platform?

I've built a static WYSIWYG page builder that hosts on AWS Cloudfront/S3. It has some cool features like being able to build your own settings / forms for components using HTML web components + StencilJS.

My question is once I release it, how do I enforce content moderation so people don't build hundreds of sites sharing illegal content that will get me in trouble and shutdown my whole account?