The point is to make it so players are actually capable of doing base level content. Everyone has had experience with someone who is clueless as to what to do in a given scenario and it feels like they need a tutorial, and there is a tutorial for every role. It's called Proving Grounds.
Nice flame too btw, it's nice to know your lack of counterpoint has the dollop of "butthurt namecalling" on top. Get gud and use your big boy words next time.
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I think pruning some abilities was a good idea, when the fuck as a mage where people using fire ward and ice ward regularly? Super vague or nearly useless abilities should stay pruned.
I think M+ having loot drops is why people are incentivized to run them so much, albeit a lot of it is just fishing for titanforges. Removing the drops would just make it a leaderboard race which is fine and all but it would just devolve into "run 1 for chest then be done for the week," which is lame.
Removing the Blizz store removes access to monthly sub tokens, which then removes the ability to earn your sub with in game time. That would actually be worse than leaving the store as is. It would also remove the ability to easily server xfer and faction change which people should have the option to do. Should be more about removing character boosts, which even then isn't that bad. Not really pay to win if you have to grind a toon to level cap and then learn how to play it.
Removing LFR and bringing back 10 man raiding would be decent though. LFR is mostly just so that players can access content without having to dedicate time to the game and find a guild to raid with which is understandable but who in their right mind plays WoW on that limited of a schedule? Who plays MMOs at all if their schedule is that limited? Nobody should ideally.
Most of these are decent ideas.