I maintain a Discord server for my Twitch Subs/YouTube members/Patreons so they can interact with myself and the Hooglandia Community even when I am offline. We talk about Games, Politics and life in general.
There is no direct invite link, instead you join the server by linking your Discord account to your supporter account. Below are screenshots for Twitch, but YouTube and Patreon are almost the same.
On Discord go to: User Settings > Connections > Twitch
Q: If I unsubscribe am I removed from the server?
A: Yes. After you have been unsubscribed for 3 days you are automatically removed