Originally Posted by
HardCoder
Actually, given that heroic should be something only the top 5-10% of serious guilds can clear before the next tier, normal mode should affect "pretty much everyone."
The problem is that normal mode isn't for everyone, it's for that same 5-10% that don't give a shit about it and are only interested in heroic.
Casual, right now, is a guild that is stuck on NORMAL Horridon or Council, at least before these nerfs. Period. That is your "casual" guild. "Casual" is the capability of the bottom 50% of guilds that, with whatever preparation the "average" player has, go forth and tries to kill pixel dragons.
Bear in mind, most guilds never try to raid. The real "casual" player is one who never raids (other than LFR).