That really hasn't been my experience, perhaps I'm just getting hit more by the sophisticated bots than the naive ones. I'm glad that it works for some people.

That really hasn't been my experience, perhaps I'm just getting hit more by the sophisticated bots than the naive ones. I'm glad that it works for some people. Recaptcha was also filtering out some legit humans (I logged all posts regardless of captcha status to be reviewed later), so it just wasn't worth reducing the user experience when the captcha bot detection rate was so low.