DYOR doesn't mean "trust your gut and whatever confirms your biases". It means "you are responsible for your beliefs and their consequences, you will always trust authorities, but you choose the authorities and there is no way to escape that fact, so you are responsible for the choice".

So if a doctor tells you to take a vaccine, you are responsible for taking the vaccine if it was a decision based upon deference to their authority. If you instead go home and watch YouTube videos you are deferring to authorities, or people you perceive to be more authoritative than the doctor, and are thus responsible for the decision, not the person who told you.

The health system used to recognise this basic fact, and hence informed consent was a foundational principle of modern healthcare. But public health, a branch of public relations, which itself was a sanitised propaganda industry, took a different view, that you are just an animal and therefore cannot be held responsible for your decisions or considered sovereign.

DYOR is just another form of NYK-NYC.