I don't need to learn to become a better raider. I don't raid because I don't want to, not because I suck too much. I'm not mythic material, but normal is a cakewalk and heroic is fine. I just hate the people in there and can't adhere to a schedule. My real life is more important to me, so I need to be able to bail, without notice, last minute, or during the raid, and that's not fair on the other people. In LFR, it's no problem.
What annoys me is people expecting others to watch videos and read tactics about bosses in LFR, but refuse to give a little explanation so we can move on. I'm not a raider, I'm not using outside sources to 'learn to play'. If you are too lazy to tell everyone 'step out of red', 'kill adds first' and 'group 5 goes portal', then just leave and quit whining. We'll down the boss without you eventually.