Part of the reason you see many quality avatars in the avatar search is because creators are forced to make their uploads “Public” to be able to make them cloneable to clients. The Avatar search worlds scrape the avatar database and list everything, regardless of the desires of the creator and the buyer who likely would have preferred it not get shared around.
The only way around this right now is for a creator to upload it to that person’s account themselves or the buyer being willing to try and use the SDK to do it themselves. (And even then, sometimes buyers want to be able to share their avatar with some friends, but don’t want it spreading around, so the existing system doesn’t have a solution apart from personal uploads).
It also makes it more complicated for a creator to maintain an avatar for people.
This announcement is hopefully a stepping stone to solving that issue. Considering the announcement of this system means that the backend now has “approved users” for avatars, that can hopefully extend to a manual system of adding approved users for avatars not put on the marketplace… Hopefully they will talk about this.