Did you know not performing as you think another player should in a group

[HyoMinPark]

I'd also like to point out that Destatiredux's example simply said "Rhalgr's", as though everyone playing the game immediately understood that it was one of the two level 70 'extreme' dungeon instances. A little bit more background would have meant fewer followup posts.

His initial post about the BLM also mentioned that the BLM was level 70. Regardless of the content, a level 70 BLM should still have a basic understanding of the most basic aspects of their rotation. My point in response to the OP was countering where he was saying we are supposed to help new players learn. and shouldn't kick "new players" from content "designed for them to learn." A level 70 BLM may be a fresh 70, but they aren't a "new player," and, as I said to the OP, they should have an understanding of the most basic aspects of their rotation.

To your point about rotations, it may be easy for you to pay attention, but that does not mean it is easy for everyone. Personally, I have more than enough to do with my rotation and efforts to avoid the instance mechanics.

Even so, there are still things such as DoTs or debuffs that some jobs need to utilize (and should be utilizing), and that can be easily seen on mobs. I always notice when DRGs fail to upkeep Disembowel, or when SMNs don't DoT/Bane mobs, in part because I am watching my own DoT timers on mobs to know if/when to refresh them. Barring all of that, there are still in-game battle logs. While it's not possible to completely examine another player's rotation outside of using third-party software, things such as DoTs/debuffs and even just AOEing when they should be are easy enough to notice without examining with a microscope.