Unless paying out to his clients were terms of the sale, or unless he bought the private keys themselves, etc.
People draw so many conclusions from so little data, I swear.
In this case, it's actually easy to confirm that Shadow383 is correct - it's GPUMAX. I should really have googled the address myself:
The following address is managed by GPUMAX.
- 1PSf86KnLuzM7Ris5kDhTEZwooR3p2iyfV
Sorry it wasn't more interesting.

-pirate