http://www.forbes.com/sites/davidthier/2015/07/17/nerfing-gjallarhorn-and-thorn-is-the-exact-wrong-move-for-destiny/
Love how they mention the "balance up" method from Blizzard.
You obviously never played WoW if you think Blizzard never nerfs anything and only balances up. LOL dumbest thing I ever heard. Did an 8 year old kid write that article?
Btw if they balance everything up, they'd also increase enemy health. It's much easier to nerf 2-3 OP abilities than to increase 100s of others. You're also more likely to wind up with more mistakes or new OP or UP abilities that fall through the cracks.
Edit:
Here go read through the recent changes in WoW. Might want to scroll down to the section for each class. Notice how many nerfs ( and buff and tweaks and redesigns ) there are. Quite a few nerfs huh? So what's this about Blizzard always balancing up?
http://us.battle.net/wow/en/blog/19806402/fury-of-hellfire-62-patch-notes-6-22-2015