Spending a lot of time arguing is very different from optimizing for being persuasive, or for only being persuaded by true arguments. Curi evidently spends a lot more time in argument than most members of this board, but I certainly wouldn't say that it's been helpful for him.

A gazelle that gets caught by a cheetah will die. A person who makes less sound points in a debate and refuses to change their mind can not only insist that they won the argument, they may even preserve more social status by doing so than acknowledging that they were wrong.