How are bards for pvp?

[Geologo]

Bards have very strong burst damage, and excel at interrupting casts.
[...]
A Bard deals 100% (i.e. normal) damage from about 15/16 yalms away, any closer/further than that and you get an attack reduction; it goes down to about 40% from melee or maximum range.
[...]

I don't remember that it work in this way o.O
In a site I found this too

Archers and Bards have their damage modified by distance in PvP, with shooting at maximum range causing lower damage.

To lower their damage you have to stay FAR from them, stay close to them will cause you die.