We've had word back from EA regarding their peculiarly-worded terms of service for Origin. Senior director of corporate communications John Reseburg explains: “The Origin terms of service are designed to protect against misuse of the Origin system. No Origin user who has paid entitlements and/or downloaded games will have their account cancelled or games expired due to extended non-use. The term regarding account cancellation for non-use is designed to guard against creation of non-active accounts for inappropriate reasons.”
So that's good. As long as you weren't intending to create non-active accounts for inappropriate reasons, anyway.