About Bard's DPS:

I think, considering BRD's utility, mobility, and ranged attributes, they should be the lowest DPS of the DPS classes - which they are, the closer to iLVL90 you get. However, I don't see a reason to nerf it in the slightest in iLVL90 gear. If anything, SE should nerf their early end-game superiority, which is when they are truly dominant. See, I personally used to think Bard was OP, too good, amazing, why am I not rerolling, etc, and so did my FC and friends in general, but that was in AF gear, with Ifrit Bow/Garuda Bow. I learned my lesson though as we all geared, and it beaome apparent that their DPS scales way worse than the other DPS classes - now, none of my FC mates or friends cry OP about their damage or mobility, as it's just not that special anymore.

About Bard's utility:

This is where Bards are wanted in virtually every party, 4 man or 8 man. Whether it's giving Foe's to the casters' DPS, Mage's Ballad to keep the raid full of mana and allow strategies previously unusable, TP song to the melee in a long fight, whatever, their support is very, very strong. While I don't think SE should nerf songs' effects, I do think the MP cost should be higher, or make the songs more limited in use.