But if something has no evidence presented then I don't understand why an educated person would care. We know that without evidence the advice/tips/pet theories of human beings are much more likely to be wrong than to be right.
Without any evidence I read these kinds of things like "here is some bullshit that is almost certainly wrong in a fundamental way because I am human and therefore have a multitude of biases that I am unaware of".
Doesn't mean it isn't interesting to read someones personal philosophy, especially if it's well argued and written. But why would you follow advice when you have no way of determining if it's good or bad advice? The more convincing something like this is to your "gut" the more likely it is to be a specific kind of bad advice.
How could knowing if something works or not not be necessary?