Starlinks are built to safely burn up on re-entry. A big reusable platform will have to work quite differently to never uncontrollably re-enter, or it might kill someone by high velocity debris on impact.
This adds weight and complexity and likely also forces a much higher orbit.
I can’t wait for all the heavy metals that are put into GPUs and other electronics showering down on us constantly. Wonder why the billionaires have their bunkers.
Hopefully a sea platform does not end up flying into space all of its own, only to crash and burn back down.
Maybe the AI workloads running on it achieve escape velocity? ;)