I would say alcoholic 'types' do matter.
An openly aggressive drinker is totally different to secret drinker who drinks to maintain their habit. Binge drinkers are 'normal' for days at a time..but then go mad at it, over indulging in a short period of time. Yes..they all depend on booze in their own way and that's the common denominator but someone who works, who is well groomed and to the world looks in control but who drinks at night cannot be compared to a slovenly unkempt person who stumbles through every day from morning to night whilst living off the state.
But one thing can be generalized...they are all liars.