but the error in that way of thinking is that there's a self-appointed person who decides what's 'nonsense' and who is 'gullible'.
We'll quite, it's a very arrogant point of view. I'm not sure how people acquire the view that everyone else is stupid in comparison to them.
No-one should have that power. Plenty of examples in history and in current regimes that show how that type of thinking evolves into dictatorships/religious states/totalitarian societies.
You need free flow of information and freedom to express a view, otherwise how are any of us free?
I wonder if it's fear based, I can't think why anyone would spend so much time policing the opinions and experiences of others. Anti-vax statements are robustly challenged on MN. I see vaccine hesitant people encouraged and reassured (obviously some people take the opportunity to tell them how stupid the are) and the thread for people with needle phobia was very supportive.
I find it surprising that some posters are so exercised by other people's choices, the frequently make appeals to the authority of science and data whilst consistently ignoring the data which shows a very high rate of vaccine uptake in the UK.
I always feel I need to point out I've had all my vaccines a the earliest opportunity in case my love of freedom and democracy has me dismissed as a crazy anti-vax, conspiracy theorist.