Highly abusable.You have undertaken actions to get that bad rep, deal with it.It already gets back to neutral after a while.
Dying doesn't have any downside if you don't lose anything. Reputation is pretty much a joke anyway.
The only exploit involved abusing your intelligence
Well you have to wait doing nothing and waiting for respawn, and then going back to the place you want to go. If it happens once and without eq it's nothing special. But if you have to die repeatedly i can see a significant downside here.