The 2x New Moon Bonus is a limited-time multiplier that doubles the value of each Coiin burn during the first two weeks of the lunar cycle, starting from the New Moon.
During this bonus window, every burn you perform is worth double when added to your Validator Multiplier. This is a great time to maximize your burning activity if you want to get the most out of each Coiin you burn.
The New Moon Bonus resets each lunar cycle, so watch the calendar and plan your burns accordingly to take full advantage.