How the mount ranking works
Collected-mount totals use the count stored by each character's latest Missing Mounts scan. A character without a stored mount count remains in the existing ranking at zero. The ranking orders those character records from highest to lowest; ties keep the existing leaderboard order.
These rankings cover characters indexed by Missing Mounts—not every World of Warcraft player, account, or Warband. A new or refreshed character scan can change the sample, counts, and positions.