Holy crap. Thanks for those clear explanations. I got mixed feelings about that. Any Superman, no matter how powerful, pre-C/post-C “merged” or whatever, that is functionally immune to his timelessly established weaknesses is no longer the same character, and pointless in a debate so I def get it now.
Having Vertigo, Milestone, and Wildstorm characters with retconned histories with the JLA, however, I actually can def get on board with, despite my initial aversion to reboots.
I also do understand why DC is doing this. Now that they have a more exciting well to draw from, it’s an appropriate time to amp up their banner characters, but it def shouldn’t be permanent