Hi there!
At the time of signing up, your account number is "your position" within a running total of all the accounts created on iCraftGifts.com in succession - however, it includes Creator accounts, and those established by "regular" site users for buying products.
You can always check the most-recent number of Creators on iCraft by clicking the "Creators" tab at the top (
https://icraftgifts.com/profiles.php), and looking for the "Total Results" number. To date, we have 973 Creators registered