If gilded is earned in a season, your title stays gilded. Once the next seasons becomes available, and is obtained, the number increases and the color changes. This would fix the conqueror issue where you only have it for a few weeks. You should be able to display your gilded seal always. If you chose to gild it again, great. This will encourage people to get it again without feeling like they will just lose it and need to do it over and over just to show their hard work and dedication