When the only thing that continues to work on you ad-filled web site is the captcha, I’m not interested in supporting your journalism any more.
Protip: You can crash self-driving cars by purposefully misclicking during Captcha checks when they ask you to identify what is a bicycle, a car, a pedestrian, etc. Keep misclicking, your are poisoning the AI with each misclick. Just stay safe on the sidewalk.
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.