I do not know what this jotform is all about. I thought I was signing up to be a mystery shopper, and all of a sudden it asked me to create a job for

You may have filled a form that was created using JotForm.

What is JotForm?

JotForm is a powerful online application that allows anyone to quickly create custom online forms. Its intuitive drag-and-drop user interface makes form building incredibly simple, and doesn’t require you to write a single line of code. Using JotForm, you can create and publish forms, integrate them into your site, and receive responses by email.

http://www.youtube.com/watch?v=grn-jeKussU 

https://www.jotform.com/faq/