Just barging in , didn't read the summaries /articles.
It may be that we need a new word , a new way to emphasize the past tense -ness of being quit, perhaps 'quat'
Quitting is such an inviting AV vocabulary choice.
Once you have decided to quit, once you quat, everything else is literally everything else. Permanent abstinence from alcohol use is achieved, the option no longer exists.
The set of 'everything else' will include within it the subset ' how being quit(quat) feels , beast activity,AV ect' but no subset that includes 'more drinks' , a happiness quotient can not be assigned to a non existent variable, happiness isn't a measure (read condition) of abstinence, abstinence is a stand alone quantity, its existence is binary , it either is or it isn't, permanent unconditional abstinence is achieved or it isn't. There really is no place for present participle usage when referring to quat.
AV demands quitting leads to happiness, ignorance( the verb) is bliss
, ambivalence toward quat happiness will set you free ie shut down AV centered on attainment or nonattainment of quat happiness .
Life happens , alcohol consumption is only a part of it because the AV says so, ignore It.