He's very much aware that he's a merit source; he made a comment about it on one of the threads where the pending list of merit source applications is updated, here and on his local board, and the admin also sends each of the newly approved merit sources a DM, which @Mia Chloe, as one of the new merit sources, can attest to, so they won't miss the update that they are a merit source. As long as they might have come online after the approval, they will get the message.