All dungeons should have minimum ilevel requirements?

[Nihility]

You can level really quick if you keep up with side quests, so I can see the annoyance of people not having the right gear for lower level dungeons. But is it really that bad higher up?

I only ran into such a thing once, where the tank in DD had level 20 gear for some dang reason. I ended up leaving the group, since I was the healer and the 2 DPS were friends of the tank who could apparently do no wrong in their bad gear.

it's not that bad but when it happens it's pretty painful to deal with. ilvl requirements don't even need to be very strict you know, just something to strain out the blatantly unready

[Kayiko]

The first few dungeons it isn't a problem. But getting a tank in a level 50 dungeon with less health than the healer is a problem. Even if that healer is synced from 70 that makes it way harder then it should be.
I'd say anything above 30 should have a ilvl for dungeons or such. So people can use the items that give exp bonuses below level 30 still.
Even still it should near the level required to enter the dungeon.