Why is so hard for newbies to learn how to raid?

[Ashkendor]

I gave up making my groups because i would always get someone who didn't read the "practice" Or "Learning" bit in the comments so on our first wipe they would rage at us because we do not fully grasp the mechanics of a fight and i clearly label it as a training run but they still join expecting instant clears...

Those people deserve to be laughed at for not maintaining a basic level of awareness, not to mention literacy.

Don't let them stop you from learning.