어도 미치다

insane even at a glance

미치다 literally means going mad, but 미쳤다 in casual speech is a compliment — insane, unbelievable, off the charts. -어도 concedes the smallest case, so 딱 봐도 미쳤다 is 'even at a glance it's insane' and 2023년에만 해도 미쳤다 is 'even just in 2023 it was mad'. Nothing here is a literal claim about mental illness; it is all praise or exaggeration.

Register: slangy praise, very casual