Going in blind is one thing, but when there's no attempt at communication or people can't even apply the basic stuff they were taught/shown enough from older content then that's when I get annoyed. For example:

- See adds spawn? How about killing those instead of just ignoring them. You're taught this in practically every dungeon with this mechanic.
- The boss is putting damage-up stacks on the MT? How about doing a Tank swap. You're taught this in A3
- See a group of arrows pointing at a character? How about stacking with the group to take the damage. You're taught this in Thordan and VA.
- Noticed the same enemies you faced before come back in another fight? How about seeing if the same mechanics you did then are what you have to do now, instead of running around as if you've never seen them before.