I think you started to play in Cata
It wasn't always like this. There were better times. But what was once laughed and frowned upon (some raiding guilds' attitude) is now supported by current raid design. Too bad that Blizzard pretends to ignore it and prefers to listen to people who are seemingly 5-manning raids in blues and doing full raid clears in pug.
Too bad that in reality they can't 5-men raids, otherwise they wouldn't be saying that recruitment is hard. Why do they even complain about recruitment? They can 5-men raids in blues, it is so easy. They can pug full raid clears. They shouldn't complain about recruitment (lol they don't even really know how hard it is to do recruitment on any non-top server now).