There is a general consensus that to be sober is to not use alcohol or mind altering drugs for pleasure or not as prescribed. There's debate in there regarding pain medication and medication for mental health issues but I think the basic premise is no booze, no drugs.
I wouldn't go around telling people that you're sober. Say, I'm a light drinker. Hell, call yourself a normie if you want. But if you're an alcoholic and you're drinking, you are not what most people would consider sober or in recovery.
The rules are what you're willing to live with. Don't worry about us judging you. We just know what works for us and what seems to work for the majority of us here. If you can moderate and live with that, good for you! Me, I cannot both control and enjoy my drinking. I don't like attempts at moderation because it makes me angry that I'm "not allowed" to drink as I prefer to.