WHUUUUT? JFC, I am glad I misses those times then. Like, wth!
It's tough to find original wars over stupid shit like this, but there's a good number of articles "discussing both sides" about it... it's just hilarious in retrospect. Of course like most debates today, you have people take wildly crazy positions in defense of their favorite game developers / publishers / console makers.
(literally someone spent time making this...)
Wired: "GameStop the ScapeGoat: Why Used Games Debate Isn't So Simple" (2008)
Tom's Guide: "Does the purchase of used games hurt the gaming industry? Ask yourself that question, and then five of your friends – you will more than likely get a mixed bag of answers." (2010)
Destructoid: "The Entitlement of Publishers: Used games Pt. 1" (2009, this is mostly unreadable today)
GameSpot User Discussion: "Do game devs lose money on used games?" (2006)
GameRant: "GameStop says Publishers are finally starting to understand used game sales"
Ars: ""We hope people understand that when the game's bought used we get cheated" (2010, Some guy from THQ)
Unfortunately, it's impossible to find forum wars over this stuff, but it was a real hot debate 10+ years ago. 20+ years ago, there were similar (in essence, not scope) debates around the ethics of game rentals... But the internet wasn't big enough for it to get outside of a few really niche communities.
I think that the annual firesales you see on Steam, Xbox Live, PSN, etc., kinda put a lot of those debates to bed thankfully. After some growing pains (like games coming bundled with 1-time use codes that went after used games by deactivating features of the game), publishers started selling games on digital storefronts heavily discounted, whether to combat used sales or lagging sales of games, or just to keep up with the joneses, who knows. It did kinda lead to this environment we have today of post-sale revenue like MTX, Annual Passes, and things like that. I think they're all related.
I just think the debate was so hilariously stupid.