A more productive approach might, and I emphasize *might*, be to identify those allocations which are hijacked and/or in use by dedicated abuse operations. This would have the desirable side effect of depriving those operations of resources, however it would also saddle subsequent owners with the thorny problem of trying to use heavily-blacklisted allocations. And as others in the thread have observed, it would only delay the inevitable for a while.
---Rsk
