Originally Posted by
PyurBlue
Maybe it's because it's a little more complicated than you'd think. For example healer LB3 goes from near useless at level 1/2 to potentially life saving at LB3. You can enroll at the Hall of the Novice at level 15. You won't see a LB3 for at least 35 levels, but with Echo and overgearing it's more realistic to miss it for much longer. Tank LB is extremely situational as well. DPS is a bit more straight forward, but you'll be competing with other DPS over it and it might not be clear how to best use it.
Mentioning LB in the Hall of the Novice is probably a good idea, but it won't have that much impact. Some players won't be able to meaningfully use LB until long after they've forgotten about the Novice courses. The best way to promote proper LB usage is to teach other players. If it really bothers you (general you), provide some LB advice to new players. If you're in a position to LB, maybe mention at the beginning of the dungeon that you plan to use it. As a melee say "If we have LB at the second boss, I'll use it there so it will refill for the last boss" or if you're a caster "I'll use LB on the enemies in the next room since caster LB can hit them all".