It became important because CAPTCHA on contact forms is often a bad idea (lost sales leads), yet you also don't want huge spam for those forms. In my clients case the forms are tied into SugarCRM so spam is totally unacceptable.
It will likely be integrated into v11, although it is a complex set of changes that will require more changes to be compatible with our v11 JavaScript rewrite.
https://www.google.com/recaptcha/
It became important because CAPTCHA on contact forms is often a bad idea (lost sales leads), yet you also don't want huge spam for those forms. In my clients case the forms are tied into SugarCRM so spam is totally unacceptable.
It will likely be integrated into v11, although it is a complex set of changes that will require more changes to be compatible with our v11 JavaScript rewrite.