It depends on the person on a case by case basis. Last night I saw a shout in RT for a AK run. Joined the party, was told that the tank never ran it before, myself and the other DPS were cool with that. (he had a pocket healer) I helped him out by letting him know which mobs were CCable and marking first kill targets for him, how to avoid certain abilities from certain mobs, boss mechanics, stuff like that. First boss was a breeze, Demon Wall took a few tries after trying some different adjustments, and the last boss was easy peasy. Wish the guy had gotten more upgrades as it was clear everyone else was already AK/DL geared.

Some people just have this rush rush rush me me me mentality and aren't capable of taking a step back and helping out their fellow player, instead insulting them or just dropping groups altogether just because it might take a little bit longer. It's hard for people to improve if people aren't willing to help them do so.

I know people have run AK and other things until their eyes have bled and just want to get it over with, but taking the time to help someone one day may come back to benefit you later on, especially in the case of a local pickup group.