This would be great to get our forum going – invite 10 friends and get a special badge or something.
「いいね!」 1
Already exists in a similar form
https://meta.discourse.org/badges/25/promoter
https://meta.discourse.org/badges/26/campaigner
https://meta.discourse.org/badges/27/champion
If that isn’t what you had in mind, you can always create your own custom badges to suit.
「いいね!」 8
Also you can see detailed invite info on the admin panel/dashboard as well as individual user profile pages.
「いいね!」 3