your first bracketed response is both a very acute hypothetical situation that only a moron would argue, not only that but it's not even close to the point i was making, perhaps that's my fault for not explaining it better and expecting some degree of understanding to read between lines, let me make it perfectly clear:
the game as it is now is a shell of what it used to be, the number of people playing the game has diminished to the point that as a best guess estimate, there's only around 2-3 million players worldwide, blizzard no longer has the luxury of designing features and gameplay loops that can be 'finished' without significant time investment from players unlike years past when they had content that was very much 'oh you're done? ok come back for the new stuff later' because the playerbase was not only substantially bigger across all regions, the game was well known and big enough to attract new players at the same rate that people were leaving after 'finishing' the content and taking a break, every single design decision since legion development has likely been made with maximum player retention and 'forcing' players to stay logged in through monotonous 'insert expansion themed grind here' for player power with randomised rewards to the point you could run the same dungeon looking for that one specific trinket/weapon/whatever 10,000 times and never get it at the level you need it to be for the content you're running, this is not 'fun' nor is it 'engaging', it's why so many hated the titanforging system despite it working for a large number of people in a positive way.
deterministic loot is one of those things that blizzard has gone out of its way to remove from the game since WoD, and is extremely against adding back if it all possible using the, in my opinion at least, pathetic arguement of 'we want players to feel happy to earn their rewards when they are dropped randomly', i never bothered with pvp in TBC, i started with it wrath, and i can tell you i felt like i damn well earned the tokens needed to buy the gear i would use for pvp, and every time i got an upgrade it made me feel like going for that next piece to make myself just that little bit stronger until i was fully geared and i went in knowing that assuming skill parity i would more often than not come out a winner because of my effort and time investment and i felt rewarded for that, compared to modern times i can easily imagine the extreme levels of frustration because of hoping for that one key item you need and never seeing it drop because blizz thought in their infinite wisdom that was more 'fun' than being able to exchange your time for the exact piece of gear you wanted.
loot is now at the point where they have basically reverted back to the 'classic wow' style where everything is a static version of an item, and the quantity is non existent and this is just the most obvious recent change intended to drive player retention, i might just be cynical at this point but honestly there has been little to disprove the theory that the content is designed to keep players logged in and logging in over being fun and engaging like it used to be.
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this is both a fallacy and is also wrong, i pity you and the others like you that have this warped mindset because of a potentially bad experience at some point in time with a pug group and you lost out on some loot because of an egomaniac raid leader who had master looter enabled, let me say that is without a doubt one of the most rare things to happen with loot under the master looter ruleset and happened very infrequently but when ti did occur it was blown up out of all proportion to the point where the hivemind now believes it wholeheartedly.
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to use a term, the people who are against this ruleset and who vehemently back personal loot are the ones that belong to the cesspool guilds, and/or have had a negative experience in a pug group with a raid leader who thought it was a good idea to ninja loot a contested item and screw those who want it over.
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i'll give you a wow themed version of this well known phrase:
'not every hunter is an idiot, but every idiot plays a hunter'
when you understand the meaning of that quote apply it to yourself and understand that from the posts you have made and the mentality/mindset displayed within it's very much apparent you belong to the latter than the former, your response pretty much says it.