The Saba Effect
The Saba Effect is a hypothetical cognitive bias stating that people with low ability at a task overestimate their ability. This can lead to the person being on "high horse" although having no actual points or valid argumentative material in an argument. This repeating behavior can lead to a lot of miscommunication and arguments in small friend groups. People sometimes buy into these people's false abilities and get tangled into their trap.
"Watch out, some say The Saba Effect could lead to stupidity!"