reCAPTCHA's tile fade-in doesn't punish bots, it punishes real humans. Your argument might be valid if reCAPTCHA were a true CAPTCHA, rather than compliance/recruiting mechanism used by google to abuse people until they relent and adopt google products.
But yeah, it's free so you can't resist using it. Have you ever stopped to wonder why google gives this service out for free? When you integrate reCAPTCHA into your website, you're selling your users out.
But yeah, it's free so you can't resist using it. Have you ever stopped to wonder why google gives this service out for free? When you integrate reCAPTCHA into your website, you're selling your users out.