Giving library card info to friends and relatives

This was in the comments to a story at Teleread.org

” I can assure you OverDrive is not interested in managing or having any say in your library policies and issues.”

Sounds like just the opposite to me.

My sister is legally blind, (she can read large print on her Kindle but cannot drive), and lives in a rural area where she does not have easy library access. I live in another county, but she frequently uses my library card to access my county library’s e-book collection as well as the library in Philadelphia. The libraries welcome her patronage, but it sure looks like Penguin is telling them that they should block her access since she doesn’t live, work or attend school “in service area, etc.”. If that isn’t having a “say in your library policies and issues”, what would you call it?
——————
Any issues for your library when people give friends and relatives their library account info so they can check out ebooks?