Well if people can use these biases against the things they don't like - then the things they don't like aren't backed up with data, or they aren't reasoned cor

Well if people can use these biases against the things they don't like - then the things they don't like aren't backed up with data, or they aren't reasoned correctly or they are argued fallaciously. Having a deep knowledge of cognitive biases, logical fallacies and the improper use of statistics destroys the vast majority of hypotheses that are stated on a daily basis. This is not because we don't like these things. No, it's because most people are full of shit. See if you can see all examples of biases, fallacious arguments and poor reasoning in my above rant! I've used a fair few. But only because I know all of them. Knowledge allows me to see through people whilst making myself opaque to others. Yes this can be abused. However this is only true to the extent that most things are already bullshit - using these techniques can only change what bullshit people believe. However these techniques don't effect what is true or not - they merely help find it.