Invite the most friends that signup and create valid accounts and you will win as many months of membership as successfull invites, but maximum is 12 (a year).
The person with the second most invites will also win free months but with a maximum of 3 months.
The contest timeframe is a month and starts over each month for consecutive three months. A person can only win once.
The supporter plan gives you access to feature like adding your Facebook posts and any feed like RSS, YouTube channel and more.
You will also be able to define a unique nickname to be used in your public profile Url, no random number.
The rules are:
You have to invite "real" people and not use your own email address if you have many.
A valid invite counts when the user has signed up, verified their email, selected a country and at least one RC category in their profile.
Each period (3 in total) starts on the first of each month (February, March, April) and ends the last day of the month.
If two people has the same number of valid invites the person that registers the last counted invite first wins.
The winner with the most invites get as many free months as invites, but a maximum of 12 (a year).
The second place winner get as many free months as invites, but a maximum of 3 (a quarter).