Create managed accounts that are locked to a server and/or "parental" controls

I'm in the process of setting up a game center, and one of the features of the system we're using is an automated Discord sign in, which I've created ~20 accounts to be exclusively used on the PCs.

While it automatically opens the server, I worry that some less-than-nice customers might use these accounts to join other servers/spam random users, as there's no system in place to prevent that. 

I propose being able to make accounts that are tied to a server, rather than an account, OR provide the ability to lock Discord accounts down. Akin to parental controls, this would lock an account from joining new servers or adding friends without a PIN code, set earlier. Just a small deterrent like that could do wonders. 

Thanks!