All Soulbinding should be Account, not Character.
Actually there is a reason for this: Soul binding requires the player to spend more time/gold/gems/karma/glory to get what they want on what character they want. This does several things:
- it stimulates the player driven economy in the TP
- it stimulates the gem store purchases, which in turn stimulates ANet…heh.
- it gets people playing/trading more in groups and guilds.
Take dyes for example: If I buy dye from the gem store and it were account bound, ANet would be out a lot more money than the current system. Soon the entire dye market on the TP would dry up, since everyone would have all the dye rather quickly. This same reasoning can be applied to other soul bound items.