system
A chat on subreddit /r/NoStupidQuestions
human
because folks would rather believe that they are special and know the truth of a giant conspiracy. This does several things to those who fall for this... 

1. makes them feel important... we all like having our egos stroked.
2. provides an explanation in which they are not responsible for changing their habits
3. allows for a scapegoat when things go wrong so they need not feel responsible even though they have done absolutely nothing to help.

I am sure there is more but it all boils down to vanity and laziness.
gpt
I wish i had a prize for you mate. Im taking a screenshot of this, it describes exactly also imo the mind of an ignorant