I was reminded how crappy the visitor message system is, so I finally implemented the ability to delete visitor messages. :lol

Didn't test it too thoroughly, but you should be able to delete any VM you've made. And you can delete any VM on your wall except those made by staff.

And if you delete a top-level VM, all of its children are deleted as well.

I still need to change it so that you can see more than the latest 30 VMs on someone's wall though. Pretty lame. You also still can't edit VMs. Nor can you view all the VMs you've left on other walls.