About Website Flyer

I have been around for many years and each time set it up to be a directory listing service, I get spammed with hundreds of user setups with garbage emails. Today I found a WP-2fa plugin and even though the user with garbage email is not verified and dumped. So I am looking to AI to write me some code to block IPs that are genning the junk. Today any good features in a plugins cost a lot of dollars when you have many sites for free. I looked at Joomla once before, but its shy on plugins, but maybe with AI, I can get around that.