Okay then, tell me your idea on how a character copy system can work without breaking the TBC economy, peoples work/investment (collectables, gold etc.) and most importantly: character attatchment.
"Copy characters but delete all gold and items."
Thanks... so now I lost my furbolg suit, eye of sulfuras (haven't completed it yet) and 1+ year worth of carefully building up my gold.
"Okay, copy characters and delete all gold but keep soulbound items."
Okay, so to keep my gold I have to buy hundreds of green or blue weapons and make them soulbound and load them into 10 characters and banks before I copy characters so I can get my gold back by vendoring them on TBC realms.
Character copies NEVER WORK for many reasons, it has to be transfers. But since you claim that there's "literally countless ways to do this" ...give me an example.
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What if I load up my character with crafting materials, rare BoEs worth hundreds or thousands of gold before I copy it?
What if my alt(s) are important to me and I play them as much as my main characters (or more) because my main is a healer which is poor for farming gold? You'd be punishing alt players, healers and others if you limit copies at 1.
It might be okay for you to level from fresh again but that might not be the case for the thousands of guilds who worked to get their guild Thunderfury, Aetish or other rare items. What if you got one of the super rare mounts or items that you feel really proud of? Nah, just scrap it all?
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So exactly what people did in Vanilla when TBC was announced? Good, players who save or invest should be rewarded. If your guild doesn't plan to go TBC and your players start skipping consumables, enchants and so on ...guess what, you're free to not invite them to your raids.