Re: So let me get this straight
Just an idea, though : maybe you could disable sharing passwords that you acquired by being shared them ? In other words, my friends get my password, but not their friends ?
You can't disable the function, because it's not possible. As it has been since Wifi Sense was introduced, the access is only shared with your contacts. Your contacts cannot share access to your system with their contacts because they don't have the password.
In this way it is more secure than giving them the password, as they cannot pass it on. What the feature really needs is the ability to pick and choose which of your contacts is allowed to use your Wifi.