[jraph]

My assumption is already that reCAPTCHA is not a solution. Your question would, then, be "Is there a solution".

You may not agree and I respect this, but this is actually my point (and I don't have an answer to this question - I wish I had, though, and you have a point!).

I wish that people stop thinking soon that reCAPTCHA is a solution at all.

Then, it will open people to start thinking hard on this problem and hopefully find good solutions that fits their exact situation. There may not be one size fits all, but many good solution for each situation. We would not know without thinking.

[rattray]

Got it. Bummer.

I wonder if you could ask the user to trace a shape/pattern with their mouse? Or you draw a few animating dots with a canvas, and ask them to click the blue ones?

Fundamentally, though, you likely either piss people off by challenging their humanity, or violate their privacy by silently tracking their behavior, or break accessibility by evaluating the way they interact with your site against "normal" (bad for folks with screen readers, lynx, etc I'd assume).

[hombre_fatal]

Now come up with accessible versions of those tests.

[fragmede]

And then, harden it against bots that actually are humans being paid by the bot-writers, via Mechanical Turk.

[brokenmachine]

Recaptcha doesn't prevent that either, does it?

[bluGill]

There won't be a solution for long. Ai is making great progress on this part of the Turing test. You can only solve this (for how long?) by making the test harder for real humans and that adds friction.

If you want to solve this legal is your best bet. Make the things bots are doing illegal, and then track down the owners. It is hard but the criminal system is the only thing we have.