Hi@dallaz,

Please note, that the user registration process doesn’t have a direct relation to wpForo. You can disable wpForo and the spam users will continue to register. This is a core WordPress function. WordPress has made lots of opportunities to prevent spam registration, almost all also work for wpForo. You can search for “stop spam registration in WordPress” in google and follow results.

wpForo has its own antispam functions. In Dashboard > Forums > Tools admin page, you can find built-in reCAPTCHA API. I recommend configure and enable wpForo reCAPTCHA for all forms. Before testing that, make sure it’s enabled for all forms: