Guests w/o password to permit auto-login via a link

[timedin-de]

Hey, it would be really nice, to have the ability to use Guest-Accounts without a Password.
The user opens a custom link, and is automatically logged into the specific user account.

In my current example, i want to share a Deck with a Guest-Account, so external people can access it without having to login.

Is that possible in the GuestAddOn or would it be better to implement it in the individual Apps (Deck) directly, like Forms and Polls did it. (I think it would be nicer to have individually configurable users.)