Our server's use case for the bot is as a workaround for Discord's pinned messages limit, so it would be nice if we could restrict access to the quote/unquote commands to those with a certain role (e.g. mods and admins). I don't know how difficult a role-based restriction would be to implement. As it stands, any user in the server can use the quote/unquote command at will.
Alternatively, an option for restricting quote privileges to only Admins (as is the case with the qc setcommand) should also suffice, albeit less ideal and flexible. Thanks for looking into this, Ralph!