Hey there! While browsing the support forums I came upon this topic here, because I was having a similar issue.
Before developing the suggestion, here you have the website with the form, as we currently have it: http://awake-gaming.com/join-us.html
The form I inserted was not only a contact form, but also a joining form. When submitted, the website calls to Discourse's (the board software we use over at http://forums.awake-gaming.com/) API via an ajax code and so a Bot creates a thread with the information introduced in the forums.
Simply put: Submit -> Code calls to API -> Bot creates thread using the input parameters on the form.
So, what if we don't want the applicant to publish his e-mail? We didn't want the mail to be submitted at all, yet Muse didn't allow us to delete that field nor hide it. In our case "fixing" this hasn't been that much of a pain, as we simply deleted the event listener. But we know how to code. What about people who don't?
Quoting the staff answer on the topic I originally refer to: "Email is the unique identifier and required to create a customer record in the CRM in Business catalyst." But there are people who don't use Catalyst at all. Or am I wrong? Is my site (awake-gaming.com) related to Catalyst at all? I understand it might be necessary for websites hosted on catalyst, but in cases like ours?
That's why I'm requesting the e-mail field on the form to be optional.
Hope you had a good read, and thank you for sticking until the end
PS. Opinions about the AWAKE website design are greatly appreciated.
This will be very helpful.