I posted this idea over at the mu.wordpress.org forum's but since I would like to use it in conjunction with buddypress might as well post it over here.
Essentially I'd like a plugin/hack where each new member is given a number of invites, say 5. They can invite 5 people to join but no more. Each of the people they invite get 5 invites themselves and so on.
Anyone have any ideas on how to go about doing this? Or is there already a plugin that would work for this? Any help/ideas very much appreciated.
not a support question