Sure we all know what you mean, but if you didn't smoke so much fucking crack and dropped out required words from your statements we wouldn't have to think about it- we'd just read it.
The quoted sentence is a grammatical mess primarily because of inconsistent verb tense. Corrected, it might read, "Sure we all know what you meant, but if you hadn't smoked so much fucking crack and dropped out required words from your statements we wouldn't have had to think about it -- we'd just have read it." I'm being generous and not counting the inconsistent spacing around the dash as an error.
[ Insert crazy temper tantrum about minor grammatical error here. ]