Never had dupes when anyone cared about the game : p
LOL!!
/delusional
WoW had a crap ton of dupes over it's lifetime that reared their heads up. I'm pretty sure there are 1 or 2 still in use today, but not nearly as widespread in their usage.
The difference is in how widespread the damage is.
At least with ESO not having a centralized auction house, the overall "economy" is hard to damage. It hasn't effected my game play on how others are cheating in this game. There isn't much of an "economy" to speak of without a centralized location/tool for players to buy and trade easily with all other players.
The problem I find is the PVP is crap now in this game. Cheaters galore and unless you cheat, you don't stand a chance. Luckily I haven't bothered with PVP yet, but it was something I was planning on doing once I reached 50+. Now I don't think that will be happening in this game. Which means I'll eventually get bored quicker of the game once reaching max level and quit the game sooner.
Until that point comes, I am still having fun and am 40+ now. Hell I haven't even finished everything in Malabal Tor yet quest area wise. So I haven't even stepped into Reaper's March to start doing quests there. Personally I am enjoying the quests and I HATE grinding.
To me this game did quests right. They aren't a repeat of the same quest of "Go kill 50 fluffy bunnies for me please" or of "I need 50 pieces of wolly mammoth poop from the ground please go get them for me" as many MMO's tend to have. Of which most MMO's have like 5 of those quests for a given level which takes you only a quarter of the way at most to the next level. Then you spend hours on end grinding out the rest of the level. Fuck that stupid shit. I'll never play another game designed like that.
ESO has a crap ton of quests. None of them are repetitive in in terms of having to kill a ridiculous amount of npcs or get a ridiculous amount of some random drop item. There are more than enough quests at any given level to level your character to the next level. They all have pretty good flair and fun/interesting mechanics associated with the quests. Some of them are very well written as well.
For those reasons I love that part of the game. I hate the game breaking mechanics on duping that were poorly tested by Zenimax. Those are breaking PVP and that aspect of the game.