There is no config for turning off Hungry Nodes; only a config to disable their effects.How exactly would that be done? I did not know Azanor had that as a config option in his Thaumcraft files. Besides, once you know what a Hungry Node really is, it's a lot better to just keep it's effects and turn it into a very powerful wand recharge node, after feeding it a lot of primal aspects. In other words, Azanor designed them for you to exploit them to their fullest potential as a recharge station, so grab some obsidian, surround it, and start making plans for the recharge station!
If you have no need for a Hungry Node wand recharge station, simply capture a Tainted Node and release it nearby, wait a while until the Tainted Node turns the Hungry Node into a Tainted Node, and after it's effects disappear, you can then safely approach your gravestone and get your gear back.
Cheers ...
BrickVoid
@asb3pe has no interest in using TC in his current server/world, so capturing or even tainting the node isn't really an option.