The best way to take down their YouTube channel is for everyone to report their latest four videos as "Spam or misleading > Scams or fraud". If enough people report a video for a community strike it gets taken down automatically, and if a channel gets 4 community strikes the entire thing gets taken down automatically.
It would be best for CM to just display a warning message that informs the user as to the mod's origin and urges them to issue a chargeback if they paid money for it. A mass of chargebacks would totally screw them over.Ilja should just release a CM patch that makes simdream cars not work. At least create the inconvenience as it t takes time to rename and move forward.