I just found a forum Hero member - Zubilica - which seems to have 1000 airdropoed merits instead of 500. I searched his profile on Bpip and it shows he earned 0 merits: https://bpip.org/profile.aspx?p=Zubilica. I also searched on Loyce.club and it seems that Zubilica did not receive any merit from another forum user.

As a consequence, this would imply that Zubilica received as an aidrop all the 1000 merits he has. Is this possible? Weren't Hero accounts supposed to rwceive only 500 merits when the merit system was implemented?