What happened to that is that no one is paid and we do the best we can. Did you report any of his posts? Did you PM a moderator and ask nicely for something to be done? I missed the part where you posting here gave you the right to act so goddamned entitled?
I remember that grammar, spelling and intelligent discussion were once regarded pretty highly here. What happened to that?
You just keep hammering on the same point over and over again that it already is clear to me that it's pointless to argue with you. I stacked stamina/avoidance since the start of this expansion, I tanked my way through full t11 top 50 clear using it (reforging mastery into avoidance mind you) because I preferred it. Even in t12 heroics I kept using the same reforging and gemming (stamina gems, avoidance in red/yellow). Over the course of our t12 progress I experimented with everything when I started having issues tanking Ragnaros (maybe our healers were just bad) to try and find a "solution". I couldn't find one. No matter what I tried, I took more damage than the other tanks regardless and ultimately led to my decision to reroll Frost. I had times where Ragnaros gibbed me with every possible setup (mastery, avoidance, stamina) when I didn't have a strong enough cooldown available. You know what setup we had the best success with (aka p4 and onwards)? Me in Stamina gems and avoidance reforging. Mostly because I and my healers were most comfortable with it, but also because it allowed me to survive the spikes that once killed me. I don't think you realise how much damage you could take in a global on Ragnaros if you were unlucky (AMSd Trap, Hand of Ragnaros, Burning Wound tick and melee hits with back to back avoided Death Strikes in between would usually get me killed).
All that to say that in my damage intake there was barely any difference between most setups. You can make everything work, stamina just has more leeway. Which doesn't make it necessarily worse or better. Unlike Block tanks we don't have an obtainable cap to aim for, so our gemming and reforging is going to be more dynamic to our playstyle.