Ah, now this is some intelligent discussion!
I perhaps was a bit too.. direct, I kind of said "It will do this, guaranteed" but of course individual experiences may vary
There is little scientific data on it, you are right
Though, from what I've seen it seems phenibut has a lower incidence of cognitive deficit compared to benzos, and was my experience, so I just wanted to get across that it is possibile for someone to experience the same
It is primarily a GABA-B agonist, so yes.. benzos will only mildly help, you need to get ahold of alcohol, baclofen, or GHB in order to withdrawal safely, and even then its risky.
It is definitely something you do not want to get dependent on
And, you have a point, if one has resorted to opioids for simple stress reduction, Phenibut or benzos could be too risky to try