Thats why to this day I dont have a copy of D3 at all.The service was crap and I returned it for a refund. Its why I refuse to even consider SCV. and it turns out that was the right decision.
Incidentally, there are reportedly cracked versions of SCV runnign already....cant verify it, but if its true,that shows its not necessary.
Also that BS about D3 requiring the connection was just a lie as the console version does not.