There's a reason why we hear all this talk about the ubiquity about INT as a dump stat. Because everybody has realized that because they don't actually ROLEPLAY their characters as dumb posts (except on the rarest of occasions in order to throw their 8 modifier a bone)... having a low INT for their character is meaningless. They as players still all use their own natural intellect to make good tactical decisions, contribute usefully to plans the group tries to put together, help out on puzzles etc., when it truly counts and is important to the group. Almost no one sabotages their group by deliberately making poor suggestions all in the name of "playing their character" and its dump stat INT. As a result, the game mechanics do almost nothing to actually define the character, because the player doesn't truly buy in and roleplay it.
So all this crosstalk on the game mechanics needing to exist to define who your PC is... I think is a whole lot of nothing.
So all this crosstalk on the game mechanics needing to exist to define who your PC is... I think is a whole lot of nothing.