you're better than this.

That really counts so much?

汉语博大精深

must you?

“至于”还分好多种呢，你指的哪种？至于，关于as to, 至于吗，管他呢，whatever, what the hell

某种语境：
-- How dare he make such errors! I shall make him pay 10 times the price!
-- You don't have to go that far. （你至于吗？/ 你不至于狠到这个地步吧。）

why so fussy?
Is that worthy?
要看具体语境。