Now that the major patch is out and bugs are squashed, I've finally had time to put this together. Here's the Giveaway Restrictions Guide:
Past Winner Restriction
This restriction prevents users from entering the giveaway if they have already won a prize within a set period of time. The length of time can vary according to the preference of the giveaway creator: Past Hour, Past Day, Past Week, and This Calendar Month. The monthly option is unique in that it is not based on a fixed period of time, but rather the month in which the giveaway was created.
No Juniors
This restriction disallows users who have less than 100 posts, or accounts that are less than one month old. It is intended to ensure that the prizes go to members who are real people and active contributors.
No Lurkers
This restriction only allows members who have made 5 or more posts in the thread in which the giveaway is created. This is intended for community threads and OTs where some giveaway creators might want to make sure that their prizes go to folks who are actually part of that community. It is not generally intended for threads dedicated solely to giveaways or threads where there isn't a central topic of discussion. Please be aware that while you are welcome and encouraged to join and participate in new communities, blatantly spamming a community thread for the sole purpose of circumventing this restriction will get you banned.
Givers Only
This restriction requires that users have created a giveaway of their own within the past 30 days in order to enter. It is straightforward and ensures that anyone who wins a prize will have given something back fairly recently.
Pay Forward Only
This restriction requires that if a user has already won a prize, they must have created a giveaway of their own since their last win, otherwise they cannot enter the giveaway. There is no time limit on this. It encourages members to keep paying the generosity forward.
Everything Must Go
Unlike the others, this is not a restriction. In fact, it is the opposite. This indicates that the giveaway creator has decided to allow any and every registered member to be eligible to win a prize. As opposed to simply turning the other restrictions off, this setting even overrides global restrictions set by the staff. It is intended for giveaway creators who want to dump codes and make sure they're gone.
Additionally...
There are some hidden global restrictions that are controlled and set by the staff. These settings are intended to prevent members from racking up an unreasonable amount of wins versus everyone else. One of them is a brief cooldown that prevents you from entering too quickly after a win. Another applies a much longer cooldown if you win too many prizes in too short a time. If you are among the top winners of all time, you will face additional (and increasingly severe) limitations. The specific numbers involved are subject to change, and we will not disclose exact values in order to discourage attempts at exploitation.
