Like it usually happens when Blizzard announce new stuff, players tend to raise their concerns over announced changes. This discussion was inspired by the recent developer chat on twitter, and original post can be found on the Tanking forums (US).
Just for clarification, since some people were confused before: I will be marking quotes GC decided [...]

Arcane mage guide by Takai of Trollbane (EU), posted on the Official Blizzard Forums.
I’m sure that experienced Mages know all this stuff, and have their own way of doing things, but I’m also sure that there are people with alts, or new Mages that want to improve their dps, and this guide should help. [...]

GhostCrawler is yet again active on the forums. This time, he’s replying to questions asked by concerned Holy Paladins, afraid for their raid spots in Cataclysm. (Something about losing their raid spots, as they are not going to be the dominant tank healers anymore.) Personally, i don’t believe in that, since it is the paladin [...]

Quote from: Nethaera

In World of Warcraft: Cataclysm we’ll be making several changes to class talents and abilities across the board. While this list only outlines some of our plans for the paladin class, we want to give you a look at the new high-level abilities and an overview of how the new Mastery system will [...]

These are just some of the Ghostcrawler’s posts on the Druid class preview forum topic, about Druid changes in Cataclysm. The post turned out in to a big QQ fest about resto changes (209 pages at the time I’m writing this). GC did however replied to some questions that didn’t have anything to do [...]