Because you *ARE* being a shallow arsehat. People join DF because without DF we'd be shouting for hours. DF is there to make a party for you. If you don't like noobs, don't party with noobs. Don't want to party with noobs, then don't use DF, make your own party or join an raiding group. If you want to down difficult content, you need a static group. If you can't find a static group because of TIME... maybe 1) raiding content isn't for you, because raiding content wasn't meant to be done and 2) you are the one that sucks and no one will raid with you.

You argument is just a variation of FFXI's "i kicked a person out of my party because I have 4 other people to "think about"". It not always one person against the party. You weren't doing it for the party's benefit, you were doing it for yours.

It's not really what you say, its how you back it up. It's not "basic simple logic". You join a random group of people that didn't give what you wanted... you weren't able to form a party for your raid, and by your "basic simple logic" you are the failure. Oh, you didn't have time? Not the other 7 people in the DF's fault. Oh, my friends/guildmates/etc. are "bizzy" and I don't want to bother them. That's still not 7 other people's problem. You love to use one person's mistake to form a mob, because you queued for a random group instead of having the patience to form one that met your standards. It is *not* random people's obligation to meet your standards. When you do group content, you are doing it with friends, acquaintances, or strangers... which means you are "bothering" SOMEONE, which means by "basic simple logic"... you are using OTHER PEOPLE'S TIME.