Agree wholeheartedly with how you posed the question, I would like to expand:

Should Adult (xxx) sites be held accountable for ads for male enlargement pills/snake oils? I personally don't think so. Is the answer to this problem to teach our population that blindly accepting what you read is safe (you can trust information posted on social media/public internet sites as fact) OR do we instead teach our citizens to filter information analytically and do research the way you are taught to in university for example?

Personally I think the former option is an intractable problem. Why try to make it safe for your population NOT to have to think instead of just teaching them how to think critically?