Voadam
Legend
Whereas I as a DM am much more interested in a player playing a fun and interesting roleplay concept than them trying to match roleplay to their character's ability stats. The latter adds zero to my enjoyment of the game.The two bolded parts above add up to bad faith play in my view: the character's defined weakness has been arbitrarily turned into an in-play strength.
Underplaying a character is fine in that even though you're playing something as a weakness the underlying strength is still there if-when you need it.
The only way I can see to build a Sherlock-Holmes Monk would be to roll stats and hope you get at least 5 really good rolls! (you could dump-stat Charisma perhaps)![]()
I am perfectly comfortable with Sherlock Holmes monk being stat built to be equal as a combatant with Sherlock Holmes Wizard and not being a behind the curve monk to narratively play as Sherlock by making their MAD worse.
I generally feel any stat/class build can go with any roleplay characterization.