As the number of personal in-world interactive features grows, so does the number of ways to abuse them.

It would be nice to have some kind of special area type object in the SDK, like audio zones, so that world creators could explicitly mark certain areas as restricted to user content (even better, by type), or vice versa - ban it everywhere except certain defined places.

VRC allows creator to turn some of them off completely on a per-world basis, but that's often too much and overkill. Right now, in most of the world I visit, it's possible to put a sticker or portal right on a mirror or TV. That's why some creators prefer to disable those features at all. It also possible to remove those manually by moderator but that requires some effort, manual policing is not necessary. So, it would be nice to have things in the expected order without having to turn features off completely.

It would also be nice to have Udon control over this, so moderators or event hosts could override it, for example.

I know it's possible to trick the system using specific colliders configurations to not allow placing content, but it's too unobvious and not suitable for daily use.