I was posting a reply to another thread in the necro forum and thought of sharing it here since it applies to the balance philosophy for all classes in WvW too.
IIRC, anet once said that the design philosophy behind condi dmg was for it to have a ramp up time. It was supposed to be Low-moderate damage that builds up over time if it is not cleansed, as opposed to power damage that was to be instant. (Which I suppose is a reason why stats like dire/trailblazers exist to enable a condi player to survive Long enough to ramp up the damage over time)
The current state of condi dmg application across most classes however seems not to match the above philosophy of ramp up over time condi damage.
Most classes are instead able to chain skills and inflict large stacks of damaging conditions that does huge amount of near instantaneous damage over time. (Which makes stats like dire/trailblazers seem broken as the condi player is able to hit as hard and as fast as a power build but with even more defenses)
The most OP burst has to belong to Mirage. Mirage is like the pre-nerf chill Reaper on steroids.
Necros are the only class that can't burst in high stacks after the nerf to Reaper chill bleed stacks from 3 to 1. Instead, they rely on a slow ramp up of condi damage over time which actually fits the design philosophy behind condi damage.
I think balances moving forward for condition damage across all the classes can reference necro as a template.