Give it a read. It's from a EU board originally.
It is very well written and argued in my opinion and I agree.
The short is that the WOW community sharing information with other players has resulted in the game getting easier not necessarily blizzard dumbing down content. The author also calls for harder raid modes to increase the skill of players (the author has a problem with the basic 'smash the bad guy' strategy most of us have win instances and raids).