Honestly. I would say 2.3 is sort of the begin of downhill of WOW.

Look at the raid instances, its no where as epic as pre-tbc.
The PVE raiding scene is pretty much dying due to the current PVP trend.
Honestly, ask yourself. Why would i bother paying consumables and repair bills anymore? Arena and LOLAFK battleground is the way to go.

PVE gear holds NO significance anymore. Whats the role of PVE gear?
To progress further in raid instances which results in more repair bills? 90% of the time the ?? boss dont even drop what you want.
Why bother talking about Sunwell?
Less than 0.5% of wow population have seen Black Temple, let alone the future Sunwell.

Even the lorelol that drives the WOW story and quests getting pretty lame and stupid now.
What? Lets kill Zuljin because he refuses to make friends with Blood Elves.
Lets kill him coz some dumbtard treasure hunters are kidnapped by him.

Class balances in WOW are as fair and balance as Malaysian Election system.
Everyone knows that Blizz Developers are very vindictive. You insult them in 1 forum post, they screw you around for 3 years.
Even if you want to start WOW, do not ever ever roll a Shaman.  You will thank me later.

Outland has nothing much to offer anymore.
What? New daily quests for professions?
Old world lvling has boring as hell since no one wants to run any old  instances anymore. People just want to blitz through lvl 70.
That is how the game created sooo many retards.
Honored heroics runs FTL.
I know some of you will feel the same and agree to what i say, but your WOW addiction is putting you in a state of denial.
Ya this is pretty much a QQ post.