Review my startup: signnow.com - I tried to make esignatures extremely simple

Nope. Very very solid (I wrote a book on the subject). There has never been a court case in the US where a signature was thrown out solely because it is electronic. Outside of the US, every major government has permitted electronic signatures for almost every use. The only things not allowed by some governments are forms regarding nuclear materials and similar things that you will probably never see in your day to day (unless you're a nuclear engineer).

and I appreciate the feedback!