So, this is nice, but I IMHO I would not make the assumption that "we are all alcoholics". I'd take care in labeling someone alcoholic because they drank heavy for a number of years.
Just because someone has a drinking problem or decides to quit after drinking regularly for years does NOT make them alcoholic. People who can quit on their own willpower, at least by AA's definition of alcoholism, are not alcoholic. They still have the will power or "discipline" to stop. They can do it on their own. Alcoholics are the ones who know they have to quit, try to quit, but go back to it no matter how great the wish or desire. This is alcoholism.
The OP has not stated he is alcoholic, but rather specifically says he was a moderate to heavy drinker. The fact that he is able to give it up on his own tells me he is NOT alcoholic but a moderate to heavy drinker who decided to give it up
There is a really good saying that you might here in quality meetings of AA.
All alcoholics are drunks but not all drunks are alcoholics.
Thorough study of AA literature outlines this simple fact. (read bottom of page 20 to top of page 21 in the AA book) Here they make the differentiation between moderate or heavy drinkers and "real" alcoholics.
What I would say to the OP is this. If you find you cannot give it up entirely and drink again in trying to give it up then you are probably alcoholic and AA has an answer for you.