I dunno. His 4:47 (EST) timestamp is awfully Q-compatable. (For 4x7=28…JR).
Following tweet at 4:57 (For 5x7=35…JFK's #)
Prior tweet 1:36 (3x6=18…1:18…28). Or just "36 follows 35."
I think he knows and he's playing the "any press is good press" role.