FRAND registry of copyrighted works. The registry would be provably connected to the creator, the royalty rate would be published ahead of time based on use. Infringement could be seen as accidental at first instance and royalty rates charged after discovery. Copyrighted work not registered? Then you are free to attempt your own single distributor network without legal protection, you can always register it some time after you fail. Charge the creator the royalty rate (or some fraction) they define in taxes to the registry so they don't set ridiculously high rates. Could also charge maintenance fees to automatically lower the rates that are so high that nobody wants to distribute at that price, heck the entire copyright limit could just be replaced with some compounding increase in maintenance fees over time. If the work is really successful they may maintain it longer, but unsuccessful works might just become moneypits very quickly.

In this case, the identity of the legal department would be directly connected to the infringing content found in the video which YouTube would have access to to verify. It also wouldn't be a takedown but a royalty demand or they could have registered "Let's play" as not requiring royalties. In principle though, YouTube or even the creator could just do all of this upfront.

That's my idea, in the vein of, "We have the technology to do this better."