Comment by cess11

If you don't remember, why speculate?

Ek had been the CEO of µTorrent and they hired a person who had done research on Torrent technology at KTH RIT to help with the implementation. It was a proven technology that required relatively small adaptations.

They moved away from this architecture after the entertainment industry got involved. Sure, it was a cost issue until this point, but it also turned into a telemetry issue afterwards.