It depends on the person and what you value as a source, studies show decent long term efficacy (10+ years I think) but according to people here it works for only a couple of years if you're lucky enough for it to work at all or even accelerate your hairloss
You don't actually believe this
The funny thing to me in these threads is that trans women like keepcoolmybabies appear to be way more mentally stable than the people panicking about the 'lgbt menace'
He's right though, shedding is not a good metric and a lot of people place way too much weight on it (I'm guilty of it myself). The problem is that a lot of people believe that hair loss literally equals the amount of hairs you lose, when it much more has to do with the way in which those hairs...