Created a Product Hunt upcoming page, not exactly what I thought it was going to be... but whatever. I'm going to launch signature.email after Christmas. Sign up if you want to be notified. https://www.producthunt.com/upcoming/signature-email
Wrote a blog post about how I hate the term "signature generator", but that's what I need to call my product: https://signature.email/blog/signature-designer-vs-signature-generator