For unlisted videos, I'd say it's an useful feature, for when you want to easily share a video to some people, but not the whole world (especially if they alrea

For unlisted videos, I'd say it's an useful feature, for when you want to easily share a video to some people, but not the whole world (especially if they already have a YT account). And for YT, it would allow for creators to continue to use YT instead of having to go looking for another solution.