I remember fighting with my RL and pallies and locks about what blessings I need.
"I'm not a fucking retard like the locks. I don't need salv. Give me wisdom instead"
Like a champ I ripped aggro off the tank. I didn't die and we still killed the boss. "I fucking told you locks I don't need salv*
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You are right. BC content is so much easier than retail. It's so much easier than retail 3 plus expansions ago. But you're missing the point. If one person is using them then you're dum if you don't. It is usually in man's nature to be competitive. You may be in a shithouse guild that barely clears normal but you bet most of the dps there compete against the other dps in the guild. If your all about the same geared then why would you gimp yourself? BC will be another Classic fail when it comes to raids. It will be a little bit harder because their are a few fights with multiple phases and mechanics. But your average LFR level pug group would still clear in the first week.
If you are competing with the other DPS in your raid, if you have a world buff, so do the others, do they not`?