The first thing to consider is that this thing won’t be stationary!
Geosynchronous orbit is much more expensive to reach per kg launched, even for Starship… when it starts working properly.
Lower orbits… aren’t stationary. Who wants a data centre that’s “over the horizon” from the owning country most of the time!?
If you think AWS egress costs are bad? Just add some zeroes! No, more zeroes than that…
Of all the things insane about this proposal, I'm not very bothered about this one. It could be high availability and distributed by default. Like having redundant datacenters with eventual consistency on all continents. Except the continents are spinning really fast above you...
The animation is wild... 5GW concentrated up there at the top of a field of solar panels - it's not a Starcloud, it's an electric Starfurnace.