Re: does it add up
It's the lack of critical thinking that I keep coming across that's bugging me. I hear what you say and substantially agree, however:
There seems to be an increasing number of people who disbelieve what is continually being proven beyond doubt and then suggest some crack-pot theory or half remembered or half understood facts they heard somewhere and deciding that this must be true - all the better if they feel they're some kind of maverick free-thinker.
Far too often, they're just wrong and the joy of promoting their new-found idea clouds the fact that they fail to provide any tiny particle of proof beyond "I reckon" - unlike the theories (or facts - scientists have an irritating habit of using language which is frequently misinterpreted) that they so readily dismiss.
Not all ideas are equal and worthy of promotion. If someone has an idea, as you say, the onus of proof is on them - not of disproof on others (if you see what I mean).