"My brother once told me, nothing a man says before the word but, really counts."A prodrome to an edition war is when somebody starts a thread that says:
"I'm not trying to start an edition war, but . . ."
That and when people start pulling out falsity arguments that they haven't been able to use since college Psych.
Or they take any criticism of their preferred system as a personal attack.
Don't kid yourself in thinking it is just D&D (not that you are I'm just using your post as a springboard to this point). Vampire, Paranoia, Shadowrun... it seems that almost any game that issues a new edition causes some kind a strife among the fans.
Edition Wars are the inevitable result of the tyranny of the RPG Tome. In a digital age there is no need for top-down, arbitrary design.
I vote for the democratisation of RPG design, i.e. a move to co-design.
I do not know; did this debate happen with Traveller or Call of Cthuluu?
"My brother once told me, nothing a man says before the word but, really counts."

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.