The principle is that we don’t want a battle between upvotes and downvotes to determine rank, because that would set the wrong incentives (e.g coordinated downvoting of stories to help a particular story move up the rankings).
The guidelines include what is on-topic/off-topic, and the most significant criterion is whether a story gratifies intellectual curiosity.
If you earnestly feel that it doesn’t, then it’s fine to flag it as being off-topic. Otherwise it’s just not to your taste, in which case hit “hide” and upvote stories you do like.
As it stands I literally have no idea what you are trying to say except for the broad dismissal of the post as pop psychology. (And yes I'm familiar with the word, it still just doesn't make any sense to me).