Not everything is black and white. If it's cutting down 50% of the spam that does not have captcha solving robots because the effort is not worth it, that's alr

Not everything is black and white. If it's cutting down 50% of the spam that does not have captcha solving robots because the effort is not worth it, that's already something. There's a reason many site still have very basic captchas...it's good enough for their use case.