> The "client" whose "identity" is abused here is not an end user. A "client" in this context is a program or library that talks to the license servers and receives

Thanks for the clarification.

Otherwise people would be worried about being targeted and having "personal" keys tied to a financial account or online identity getting sold and used by others to access arbitary content.

This seems kinda good news for concerned users, but even worse news for Microsoft.