What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
I do not think our Development team is planning to implement this feature in the near future. This feature used by abusive users caused a lot of troubles in the past, we are not saying all users make/made use of it in wrong way, but maybe it is better to prevent.
However, I think that if what you are looking for is the capability build and use registration forms, then our Profil Manager software may help you. You can find it here: http://www.interlogy.com/products/pmb/
Profile Manager Basic is a free, fully-functional, easy-to-use and customizable membership script. You can now build your own custom registration forms and membership area in your site. Your users will fill out a registration form to get access to member area in your site. On the member area, users can update their information, change password, access member-only content or browse other user profiles.
I hope this helps.
Inform us if you need further information with this query.