It may very well be that either: these people think they have a legitimate need for the antibiotic or it is helping for a narrow portion of population. The pro

It may very well be that either: these people think they have a legitimate need for the antibiotic or it is helping for a narrow portion of population. The problem is, people without medical background cannot really evaluate if a treatment recommended by random blog is worth it, in terms of possible risk-reward. This can lead to all sorts of social phenomena, of which the most visible is anti-vaccination movement.