I have my browser set to delete all cookies every time I close it. I've been doing this for years but lately, every time I decide to alter my search settings, I

I have my browser set to delete all cookies every time I close it. I've been doing this for years but lately, every time I decide to alter my search settings, I get a Captcha. I have tested this at work and it does the same thing there. I suspect that this is intentional and a way to punish people who are trying to avoid tracking cookies.