I suspect many of the defenders of the unpopular system(s) are “traders” who want their single items to “trade” for 10 billion gold or higher. And due to that amount of gold not being reasonable to farm in a <3 month period times the multiple slots required, it inevitably results in RMT gold purchases.
So these people are highly motivated to defend that system, and since they probably have bots farming for them, they have plenty of time to troll the forum defending that system and often attacking people who want to be able to farm these items (“oh, you want everything handed to you” and the most ridiculous hyperbole of all, “players want to be able to kill the monsters even before they appear on the screen”).