A User ID is a number assigned to every account made when it first visits the boards. The IDs started at 1(CJayC) and continue going up with new accounts every few minutes. Currently the user ID numbers are somewhere in the six millions. Due to the sheer number of accounts, user IDs with only three or four digits are very rare, usually belonging to respected board veterans or contributors.
The first registered user, Demon of Elru, was assigned User ID #11, as #1 belonged to CJayC and #2-10 were test accounts. The oldest active account is Shinnokxz, user #13. One of the most famous user IDs is #888113, the last account to be allowed access to LUE, belonging to Lunarhawk99. Other milestones include the millionth user (#1000000) Katslover, #2000000 Morbozun and #3000000 teg_checkup8. The last two were not held in high accolade due to the GameSpot Merger, since GameSpot accounts filled in a large portion of the User IDs.