Originally Posted by Joe The Dragon
satlelites need ground control to stay in orbit and even then they only have so much fuel
Ground control is only needed for station keeping. Without ground control the Geo Sync birds will stay in orbit. But, they will go into an inclined orbit and move to one of the two gravity wells.
As for station keeping fuel, most birds are good for 15 years. So, we've pretty much passed that point of no return.
Non Geo birds have a shelf life as well.
So, yep, it wasn't done by satellites.