There’s too many connections to the gut and mircobiome to ignore its relation to PFS. It’s possible that PFS from 1 pill can be gut related. Or side effects that happen after symptom free months following discontinuation.
On the curezone site, the guy said he was cured from PFS, and listed brain fog, ED, etc by a diagnosed and treated e. Histolytica infection.
Hormones and the immune system are connected. Older guys may have been exposed to light parasitic infections more often in their healthy, non finasteride damaging days, and developed immunity.