I've had some users of my discord guild request pluralkit to be added, but I do find it to be generally inconvenient how you have to actively use the bot to look up the system/sender for a message, or rely on users to manually addd that to their own system message.

I would love a feature (that can be enabled by the discord guild admin) to enable automatically-added system tags for all users which include a reference to their account, so any user can easily click and see the user's profile (if they want to add them as a friend, private message them, make sure to highlight them in another message, etc).