I think the reason why people are hesitant to tell the amount per day or so is because they don't want anyone reading this to think, "Hey, I don't/didn't drink NEARLY that much...I don't have a problem." I'll tell you, some of the amounts I've heard about would kill me if I drank it. I was tempted to convince myself that I didn't have a problem because the amount I drank wasn't quite as "bad". All I had to do was take an honest look at my life. My addiction has gotten me into a pretty crappy situation. I want out.
It really does not matter how much one drank or currently drinks. Is alcohol running your life? Is alcohol hurting your physical and mental well-being? Do you believe that alcohol is causing problems in your life? Do you want to stop drinking? Those questions, in my opinion, are the ones that matter most.