Given the number of bots on the internet trying to crack captchas, this is already happening. I don’t think captchas are being used for AI training that much, since hCaptcha uses AI-generated images with prompts like “Select the images with a hamster eating a watermelon” for its tests. All of the reCaptcha road captchas I receive also have answer validation and won’t let me pass if I answer incorrectly because of a misclick.

Lol, getting 10 thousand users to slightly inconvenience themself even to stand against things that directly effect them is difficult. Imagine trying to get billions to do it for a slightly indirect possible effect on megacorps.

There are probably half a billion people alone that would gladly lick the boot of any mega corporation that demanded it.

I don’t think it would have the intended effect. What would happen if that captchas wouldn’t be useful for AI training, but it’s not like a car is sitting at a stoplight waiting for a person to identify if something is a bus or not.