Captchas do do that. They can't do everything, but they are an incredibly powerful tool.
Do you run a service that needs to prevent abuse at scale? What exactly is your Recaptcha replacement?
It's very easy to complain about the inconvenience of Recaptcha, but I'd like to see less of that and more constructive conversation about what all these supposed alternatives are, because all I see is "you don't need it" which is merely a reminder that, understandably, most people aren't running sites at a scale that attract abuse.
Even HN uses Recaptcha. Check out the login/register page.
Do you run a service that needs to prevent abuse at scale? What exactly is your Recaptcha replacement?
It's very easy to complain about the inconvenience of Recaptcha, but I'd like to see less of that and more constructive conversation about what all these supposed alternatives are, because all I see is "you don't need it" which is merely a reminder that, understandably, most people aren't running sites at a scale that attract abuse.
Even HN uses Recaptcha. Check out the login/register page.