How Supporter plan works
Supporter unlocks custom slash commands, priority support and the Supporter role/badge. It's bought for one server at a time, not for your account as a whole.
It applies to a server, not to you
When you subscribe, you pick which server Supporter applies to. From that point on, every admin of that server gets the Supporter-only features there - not just whoever paid. If you're an admin of a server whose owner already pays for Supporter, you already have it, with nothing for you to do.
You can subscribe more than one server
Each subscription is its own purchase, and each applies to exactly one server. Want Supporter on two different servers? Subscribe twice - once per server. A single subscription can never cover two servers at the same time.
Moving a subscription to a different server
Open the account menu → Settings → Servers to see every server you administer, which ones already have Supporter, and a Transfer button on any subscription you're paying for. Transferring moves that subscription's server, instantly - but only once every 7 days, so it can't be bounced between servers constantly.
Buying it through Discord instead
Iridex Supporter is also available as a Discord server subscription - buy it directly from Discord (Server Settings → Apps, or the /supporter command) and it grants the exact same features to that server. It works independently of the website/Stripe subscription above, so having one doesn't cancel or interfere with the other.
If you had the old, account-wide plan
Supporter used to apply to every server you owned at once. If you subscribed before this change, you'll see a one-time prompt asking you to pick which server it should apply to now - your Supporter features keep working everywhere in the meantime, so nothing is lost while you decide. Once you pick a server, it behaves exactly like any other subscription: one server, transferable once a week.
Cancelling or changing billing
From the Servers tab, each subscription you pay for has a billing link to cancel it or update your payment method through Stripe. Cancelling only removes Supporter from the one server that subscription applies to.