I think that item spawner allowed should be a category as that could potentially develop its own meta, along with maybe banning a few op items (m2 tombstone comes to mind)

We've discussed this among the moderators, we won't be adding the item spawner as a category for now. We don't currently believe that there is enough demand to justify a new category for it. Maybe as the community grows there may be enough demand for this category.

We are also considering adding it in as part of an Any% category, but again we will need for demand for such a category.