Then why wasn't credentialless a simple fix to solve that. Not sending cookies isn't hard.
Because that would break things. You couldn't stay logged into HN without cookies. Cookies aren't just for credentials, imagine hotlinking to an image and getting a different language version because your language cookie wasn't sent.
Because that would break things. You couldn't stay logged into HN without cookies. Cookies aren't just for credentials, imagine hotlinking to an image and getting a different language version because your language cookie wasn't sent.