I prefer a WoW less dependant on individual skill though. Not because i lack it, but because i find it more entertaining to do research, theorycrafting and planning. I'm a nerd. Nowadays in WoW you just spam whatever content you can access and cross your fingers for titanforged loot. Skill has become too important in the game.
Blizzard already has a purely skill-based loot-driven game, it's called Diablo 3. I dont know why the insist on making WoW it's clone.
Skill yes, knowledge no. Only at high-end Mythic difficulties, and mostly because the game has become way more focused on end-game content and player inclusion into it.
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It's funny that i played almost 400 days in Vanilla, and a couple of years now in private servers. And shock, horror, i havent learned anything new from those private servers. Nobody (exceptions might exist) playing on those servers are sitting on knowledge that i didnt have back in real vanilla. Skill? havent seen much of that either. Yes, they are clearing the raids faster, because they are playing on made up numbers instead of real ones.