I find this "device" to be quite useless, not only will it remove the bad add-ons but that means you're re-downloading them once you join some ones server that is using them. I also find your judgement of bad/broken add-ons is not one people should trust, if this was to work properly you would have the ability to add Add-ons which the USER chooses, I don't want to download some thing that will end up deleting add-ons which I have fixed myself.