I agree. That's why I expanded my antispam to include the necessity of email verification and many other checks. You need to realize that once your e-shop is attacked, no protections will help you anymore. Just calculate how much it will cost you to restore the e-shop, uninstall it. I don't understand such a long thread. Are there so many people who want to have a safe business and for free? I'm not doing any advertising here, I'm just stating that I've already spent several tens of hours on the development of protection and several tens of hours on testing. I use the module on my website.
For basic protection, free modules from @endriu107