Active Contributor: You can complete this milestone by accruing more than 50 reputation points in the last 7 days

Creator of Popular Group: You can complete this milestone by starting a group that is one of the top 100 most active groups.

Founding Member: You can complete this milestone by being one of the first 1,000 members to gain a star.

Site Moderator: You can complete this milestone by becoming a site moderator

Top User: You can complete this milestone by being one of the top 100 users reputation leaderboard.