Alcohol lowers inhibition.
Alcohol is also rather well tested. Already in the neolithic period they brewed alcohol. And most people still enjoy it's effect
Alcohol is constantly tested in scientific research and the results are dismal. And many people enjoy unsafe sex too. And AIDS is on the rise again.
A Dutch researcher did a meta-research on all the scientific tests and concluded that there is no amount of alcohol one can consume safely because any 'positive' effects are outweighed by the negative effects. And positive effects are e.g. that it is good for your heart to drink a bit of alcohol daily because it would be clearing your arteries. Or that there are substances in red wine that help with some other disease.
There is NO amount of alcohol anyone can ever drink that is not harmful. Meta-study was done at the Radboud University in Nijmegen.
But it seems the benefits average people extract from alcohol doesn't work as well with ADHD, at least according to this tiny study. I also suspect that ADHD people will be diverse, and not always react similar to various stimuli.
http://psycnet.apa.org/journals/pha/17/2/113/
I find my focus improves on alcohol. Especially when hung over. The filtering for irrelevant information improves for me(I've tested this numerous times in competitions).
You should not drink anything. The same stuff you disinfect your surfaces with you consume. And that research you linked puts you in danger because of the lesser impulse control.
When you are hung-over I doubt you can really assess very well the impact the alcohol has or has had on you.
I think you need to consider that it is wishful thinking.
