These dusts are used to chant gear of guildies, unless its exceptional large amounts of mats needed the bank will mostly provide the dusts and essences.
The bank doesnt collect primals so far so you need to farm those yourself.
Greens for raids are DE'd unless there AH price is higher then the dusts, and also a lot of thanks to the guildies who send in spare greens and dusts!!
If we keep this up we can easily get higher stats and ensure our fellow guildies can make the most out of there current gear.
Especially in raids all these extra stats will make our lives just a little bit easier.
So keep those greens coming!