Is the user Merit-source ??
It seems, there is a big difference between 'Sent' & 'Earned'.
He should be a merit source. It is not easy to be giving such merits as a non merit source.
Since this keeps coming up:
BPIP shows he sent 603 Merits, and earned 1050. That means he earned 525 sMerits, and he was a Hero member when the Merit system started. He probably got more than 78 sMerits airdropped, so I don't think he's a Merit source.