Do you honestly not know that accounts are generally created by account creation services, like the one we run here: https://blocktrades.us/en/create-hive-account

When you see that an account was created by blocktrades (or oracle-d or 3spear's account creation services for that matter), all that means is that someone paid a small amount of cryptocurrency to the service to create an account for them. IIRC, 3speak was creating accounts for free, even.