Mesmers do go under the radar a fair bit, as well as Necros. As a Necro/Mesmer, I find that my spells do a lot of damage without a lot fanfare. Sometimes people notice, but more often than not they're just off to the next group of enemies. Killing a guy when you have Dark Aura on you and Empathy on him is a whole lot easier.
Then again, some people seem to be really appreciative, especially when putrid explosion or necrotic traversal goes off and drops the four Axe fiends hammering on the Elementalist...
Don't get me wrong, melee is important too... I guess...
