I used to drink heavily and very frequently. Quit for 18 months. Tbh I don't think I had grown up enough to know how to deal with it. When I drink now I would drink a lot, but not to the point where I am shitfaced (unless it's a special occasion). I know that I am "binge drinking" but then it only takes 3-4 beers to reach the point of "binge drinking".
For me 8-12 beers in a 9 hour period isn't too bad, though if it's done daily and you become reliant I could see how it could become a problem.