How is ilvl an issue while leveling?

[Vstarstruck]

I disagree, especially if it's a tank and/or healer. A tank in full shire gear means the healer has to work extra hard just to keep them alive (especially against the final boss' tank buster that gets enhanced two times) and it also means DPS will probably need to intentionally play poorly (Level 68-69 weapon > Level 60 weapon) just so they don't rip hate and force the healer to work even harder.

When it's a healer, they heal for less, which means they'll most likely spam their {Heal} II spell and then be OOM pretty quickly.

When it's a DPS, the dungeon just takes longer. So unless the boss has a DPS check (or the tank mass pulls), no issues will arise... but don't be that DPS.

Trash mobs from Bardem's Mettle and on hit pretty damn hard. So always try to be in up to date gear, otherwise you're just going to be an inconvenience in some shape or form depending on your role.

You never got 2 dps with mainly 270 gear and compared them to your average pug 280 ish w/e gear have you? Knowing what to do can go a long way but it is not going to bridge gap say i250 or something.

the only real diff is not doing the huge combine pulls, and even with not doing those, can still sub 20 mins there. You disagree because most pug dps are overall bad with the situation not something you seen. Theory crafting only goes so far.