When writing forms for your ASP.Net MVC websites the common approach to ensuring only real people use them site is to simply add an Html.AntiForgeryToken() to your form’s view mark-up and controller and be on your way. I've recently found out this approach while simple, can actually have pretty serious affects on both how your visitors use of your site as well as their view of it’s professionalism and stability – two things you really don’t want any trouble with.