Accept links for public chats

With a lot of people being on mobile, I think it would be a neat addition to allow a user to enter a public chat link as a way to "sign in", since I can already send a public chat link to someone and have them enter the chatroom in a web browser. If I just want to have a quicky chat with someone, they can just install the app, enter the URL and we can get to business. Otherwise I'd have to create an account for them (assuming I'm an admin) and have them do the whole sign-in process and so on.