Does "initials only" mean "J. D." or "J. Doe"? I'm convinced that the latter form would let reviewers recognize any well known scientist, giving their proposal

Does "initials only" mean "J. D." or "J. Doe"? I'm convinced that the latter form would let reviewers recognize any well known scientist, giving their proposal a massive advantage. I'm sure a living Stephen Hawking would be granted (quite deserved) access in a heartbeat!