Quote Originally Posted by Zojha View Post
The real reason is (Harsh Version):

Both Tanks and Healers are artificial roles with no point nor purpose. They are forced into the group via un-avoidable damage and are only ever as useful as they are mandatory. That's also why they end up becoming DPS as soon as Mitigation/Healing requirements are met - They are innately useless. That's also why they need Damage abilities for solo play - Because they are useless at their core. Damage is what matters, all that matters. And people subconsciously pick on, hence they prefer playing DPS.
DPS are forced into the genre with bloated HP pools in enemies and artificial "deal x damage or wipe" mechanics. Just see all those discussions that sparked during Gordias and DPS checks - one of the most common reasons for DPS checks is that "or else people would go with only tanks and healers".

In fact, I'd say that the genre would be more interesting without DPS. Tanks relies on healers, healers relies on tanks, there's an obvious synergy there. DPS? You have no way nor/or need to help tanks or healers, you just do your own thing like in a single player game.