My bitterness aproves of this post. Personally i'm losing all motivation to continue sometimes. I feel exactly the same as you but i'm just tired of moaning. Speaking of moaning, i'm also sick of diva attitudes, the one i speak of know who he is. Also, i saw people HS from Karazhan last night jumping to conclusions before we even declared the raid dismissed. Feels like others lack motivation aswell or just can't be bothered to put up efforts which annoys me something incredible. And as you mentioned in another post, people that come to the raid unprepared and unrepaired should not mention anything about "l2p" or crap like that and just pass their spot to someone else who's probably more dedicated and willing to strain his back for the raid and not just freeload because he has some spare time to kill one evening.
Even if it's not considered a "raiding guild" it has become one - seeing as we have two Karazhan groups and are doing Gruul on a weekly basis i think people should some more dedication and discipline because the quality of the current raiding just doesn't cut it. And if everyone would do like Brumhilda does by preparing before the raid the day before or something like that (farming buff foods, pots, bandages, repairmoney) it would clearly improve said raiding quality due to less stalling of the raid and no "i gotta HS and repair" after the first attempt on a boss for example. So to sum this up - if you want to progress and get teh purplz - make an effort or else it won't happen.
Just my two cents, the regular crap but please for once just read, comprehend and follow the advices. But i guess only a pair of officers will read this.