Achievement milestones
The Achievements page contains milestone badges across categories such as Surfing, Referrals, Advertising, Account Age, Logins, Contests, Surf Streaks and Purchases.
Each achievement has its own requirement and can have a one-time site-currency reward. Administrators can configure achievement thresholds/rewards, so values shown on the cards are authoritative.
Many achievements are checked retroactively against existing activity. Login achievements begin from the point cumulative login tracking became available, because older historical login counts cannot be reconstructed reliably.