ROFL. People just claim Azerite and those other systems are "Whatever is convenient for my terrible, ill-supported argument". You're claiming they're "talents", another guy is claiming they're a replacement for the pruned abilities, another still is claiming they're just a replacement for tier armour.
That's obviously not what they're doing, so... not a very convincing argument.
If you're claiming all classes are significantly impacted by the GCD changes? Because if so I'm not even talking to you anymore. That's beyond ludicrous into "straight-up lies which everyone including the person saying it knows are lies".
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Yeah. Heirlooms are stuck. They can't easily get rid of them because people invested a lot of time and effort in getting them, especially some of the more casual players, and they're involved with achievements and so on. And they serve a useful function in ensuring people leveling up have solid gear, when it is possible RNG to otherwise screw you, especially if you're leveling primarily by dungeons or PvP.
But it does seem quite likely they'll remove or massively nerf the XP boost, because if leveling is 70% shorter than now, it won't be needed.
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That was an issue in TBC. That was in an issue Vanilla, FFS. Plenty of classes/specs sucked in TBC. And most of the max-level stuff was more tedious than the BfA stuff. I'm glad you're enjoying Classic, but I strongly suspect that if they added TBC to Classic, people at max level would be having significantly less fun.
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I mean, Hamsters, you usually make really reasonable posts, but you're confusing an ill-supported opinion for a fact here. He may well have a source, probably someone on one of the non-core teams, like the web developers, but that's very different from a "direct line".