How do I ban self-replicating objects?

Though it does appear that I was very seriously wrong, I could have sworn that at one point I read that banning somebody from your land also made it so that they could not create objects on your land, and I extrapolated that idea to wonder if that could keep objects owned by a banned user from rezzing objects from inventory.

Obviously this did not work...

Is there any way to ban not only a user but all of that user's objects from a given plot of land that you own or at least make it so that they cannot replicate? If there is not, will you consider it as a future enhancement so that those of us who are around see the early stages (ground zero?) of a grid attack can play some part in stopping it?

We do have preventative measures coming soon to impede and prevent the multiplication of self-replicating objects, so you don't have to worry about them in the first place.

Related, I believe we also have an open issue (no ETA but just wanted to mention this) about *not allowing* someone to create or move objects onto your land if they're banned. This might apply in broader situations, e.g. annoying neighbor who keeps pushing cubes over.

[UPDATE] In addition, I've just learned Andrew Linden has internally implemented a way that'll block "grey goo" (self-replicating objects from crossing region boundaries, making containment of future attacks easier.